A. 1. d. 2. b. 3. c. 4. a. 5. a.
B. 1. resources
- good education, training
- Japan, few 4. Asia, 50
- high 6. facilities, low
- planning 8. health, old
- female 10. epidemics
C. 1. F 2. T 3. F 4. T 5. T
D. 1. b. 2. c. 3. e. 4. a. 5. d.
E. 1. The percentage of a country’s
population in different age groups is
called age structure. - The factors that have led to slower
development of Asian and African
countries are high birth rate and low
infant mortality rate that has led to
a large group of population who are
unproductive and dependent. They
also have lower literacy rates with
a long history of exploitation. - Sex ratio refers to the male-female
ratio or percentage of males to
females in the total population. It is
calculated as the sex ratio, which is
the number of females per thousand
males. - The factors that assist the distribution
and density of population are
physical and non physical factors
like socio-economic conditions and
cultural factors like
• Physical factors like relief, soil and
climate
• Economic factors like resources,
industrial activities and urbanization
and socio economic factors like
culture, government policy and
religion. - Density of population
It means the number of people
living per square in a region.
Literacy rate
The percentage of the total
population that is able to read and
write.
F. 1. A population pyramid is a graphical
representation that shows the age
and gender distribution of a
population. It typically has two
back-to-back bar graphs, one for
each gender, with age groups
displayed vertically. The shape of
the pyramid can indicate a
population’s growth trends, fertility
rates, and life expectancy. Expanding
pyramids suggest high birth rates
and rapid growth, while contracting
pyramids indicate low birth rates
and an aging population. This tool
is essential for understanding
demographic structures and planning
for future resource needs. - The various problems that come up
because of unchecked growth of
population are
• An age structure pyramid where the
base is broad and shows that the
maximum population is dependent
and unproductive.
• It can easily create problems with
the sex composition in any country,
like it has created in India where
there is a skewed sex ratio.
- It can adversely affect the literacy
levels as it may cause more pressure
on the resources which are limited
in supply.
• It can also create problems with
employment opportunities causing
despair and unemployment among
the youths.
- The most populous states in India
are Uttar Pradesh, Maharashtra,
Bihar, West Bengal and Andhra
Pradesh. The age pyramid for India
indicates that we are somewhere
between the developed and the
developing countries as our working
age group is increasing and our old
age group is also increasing. - The socio cultural factors that affect
the population of a place are
- Cultural centres like educational
centres such as Oxford, Cambridge
and Shantiniketan.
• Government policy which influences
movement of the people and their
concentration in certain areas.
• Religious centres like Mecca,
Varanasi, Jerusalem etc which are
also developed commercial centres
and attract a huge population.
- Migration significantly affects
population change by altering the
size and composition of populations
in both origin and destination areas.
When people move to new regions,
they can cause population growth in
destination areas while decreasing
the population in their places of
origin. Migration can also impact
the demographic makeup,
introducing diverse age groups, skill
sets, and cultural backgrounds.
Economic opportunities,
environmental factors, and social
conditions are common drivers of
migration. Consequently, migration
shapes labor markets, housing
demands, and social dynamics in
affected areas.
G. 1. A population pyramid of a
developed country typically has a
more uniform shape, with relatively
balanced age groups and a larger
elderly population due to lower birth
rates and higher life expectancy. In
contrast, an undeveloped country’s
population pyramid usually has a
wide base, indicating high birth
rates and a large proportion of
young people, tapering quickly
towards the top due to lower life
expectancy and higher mortality
rates. Developed countries often
show slower population growth,
while undeveloped countries exhibit
rapid growth. The contrasting
shapes reflect differences in
healthcare, economic development,
and social structures between these
countries. - Thickly populated areas, such as
urban cities, have high population
densities due to factors like economic
opportunities, better infrastructure,
and access to services. These
regions often feature significant
housing, transportation networks,
and commercial activities.
Conversely, sparsely populated
areas, such as rural or remote
regions, have low population
densities, influenced by harsh
climates, challenging terrains, or
limited resources. These areas
typically have less developed
infrastructure and fewer economic
opportunities. The contrast between
these regions highlights the impact
of environmental, economic, and
social factors on population
distribution. - Birth rate The number of births per
thousand population.
Death rate The number of deaths
per thousand population.
H. 1. The global population distribution is
highly uneven, with the majority of
people concentrated in Asia,
particularly in China and India.
Urban areas, especially megacities,
attract large populations due to
better job opportunities and
amenities. Conversely, regions like
deserts, high mountains, and polar
areas have sparse populations due to
harsh living conditions. Economic,
social, and environmental factors
greatly influence where people live.
Consequently, this uneven
distribution creates significant
challenges for resource allocation
and development planning. - Because developing human
resources will eventually lead to the
development of all the other
resources in the country.
For any country in the world,
resource development is closely
associated with human development.
DO AND LEARN
Assertion And Reasoning - a. 2. b.
Application/Competency Based Questions - As you have studied that human beings
are one of the most important resources
of development, yet overgrowing
number of people prove to be a barrier
in the growth and development of a
nation. How?
Ans – While human beings are vital for
a nation’s development due to their
skills, innovation, and labor, an
overgrowing population can strain
resources and infrastructure. High
population growth can lead to
unemployment, insufficient housing,
and overburdened healthcare and
education systems. It can exacerbate
poverty and inequality, making it
challenging to provide quality services
to all citizens. Environmental degradation
and depletion of natural resources may
also result from excessive population
pressure. Consequently, managing
population growth is crucial for
sustainable development and economic
stability. - As it is evident in most of the developed
countries, what is a standard measure of
the fact that the population of a country
is under control?
Ans – A standard measure indicating
that a country’s population is under
control is the Total Fertility Rate (TFR),
which reflects the average number of
children born to a woman over her
lifetime. In most developed countries, a
TFR close to the replacement level of
about 2.1 suggests stable population
growth. Additionally, indicators such as
a balanced age distribution, low infant
mortality rates, and longer life expectancy
are signs of effective population control.
Stable or slow-growing population
numbers, as seen in census data, further
confirm that a country’s population is
well-managed. These measures
collectively indicate sustainable
demographic trends.
Hots - Because of remarkable changes in the
medical sciences which reduced the
death rate and increased life expectancy. - Because more humans in a country also
means more pressure on resources to
develop them so too much of human
resource is not good for the development
of the country. - The world population has grown rapidly
due to significant improvements in
healthcare, leading to lower mortality
rates and longer life expectancy.
Advances in agriculture and food
production have reduced famine and
improved nutrition. Industrialization and
economic development have enhanced
living standards and access to resources.
High birth rates in many developing
countries continue to contribute
significantly to population growth.
Additionally, better public health
measures and medical innovations have
curbed the spread of many diseases.
Picture Based Questions - Birth rate and Date rate
- Birth and death rates significantly
impact a country’s employment status by
influencing the size and age structure of
the labor force. High birth rates can lead
to a growing young population,
eventually increasing the number of job
seekers and potentially causing higher
unemployment if job creation doesn’t
keep pace. Conversely, low birth rates
can result in an aging population,
leading to labor shortages and increased
dependency ratios. High death rates,
particularly among working-age
individuals, can reduce the available
workforce and productivity. Balanced
birth and death rates contribute to a
stable labor market, supporting consistent
economic growth and employment
opportunities. - The ideal situation for sustainable
development involves maintaining a
birth rate and death rate that are
balanced, leading to a stable or slowly
growing population. A Total Fertility
Rate (TFR) around the replacement level
of 2.1 ensures a consistent labor force
without overburdening resources. Low
death rates, particularly due to improved
healthcare, support a healthy, productive
population. This balance helps prevent
overpopulation, reduces environmental
strain, and ensures adequate resource
allocation. Sustainable development
thrives on demographic stability,
enabling long-term economic growth
and social well-being. - In the picture, death rate is higher it
indicates a declining population. This
scenario often reflects an aging
population with low fertility rates and
can result in a shrinking workforce and
increased dependency ratios, putting
pressure on social support systems. It
may signal potential economic
challenges, such as labor shortages and
decreased economic growth.
Additionally, it can lead to demographic
imbalances, affecting long-term
sustainability and development.
WORKSHEET
A. 1. Human resource 2. northern - census
- Literacy rate
B. 1. T 2. T
T 4. T
C. 1. d 2. d 3. d 4. a
PERIODIC ASSESSMENT 2
A. 1. Jute 2. 20°C
- Literacy rate
- bagasse
- India, Bangladesh
- nearly 100
- Uttar Pradesh
- Madhya Pradesh, West Bengal,
Odisha - Steel
B. 1. Biofuels are renewable fuels derived
from organic materials such as plants,
crops, or waste, used as alternatives
to fossil fuels. - Mica is primarily used in electrical
and electronic industries for insulation
due to its heat-resistant and electrical
insulating properties. It is also used
in cosmetics, paints, and as a filler
material in plastics and rubber
products. - The top iron ore producing countries
of the World are Australia, Brazil,
China, India, and Russia. They
account for 80 % of the world’s Iron
ore production. Australia is the largest
producer of Iron Ore in the world,
with 37.6% of the global production. - There are several varieties of cotton,
including:
Upland Cotton: Also known as
Gossypium hirsutum, it is the most
widely cultivated cotton variety
globally.
Egyptian Cotton: Known for its long
staple fibers, which are soft and
luxurious, suitable for high-quality
textiles.
Pima Cotton: Another type of long
staple cotton, known for its strength,
softness, and durability, primarily
grown in the southwestern United
States.
Sea Island Cotton: Grown in the
West Indies, it has extra-long staple
fibers, prized for its silky texture and
strength.
The term “staple” refers to the length
of the cotton fiber. A longer staple
length generally indicates higher
quality cotton, as it produces stronger
and finer yarns. Longer staple cotton
varieties like Egyptian cotton and
Pima cotton are valued for their
superior quality and are often used in
luxury textiles and apparel. - Population density refers to the
measurement of population per unit
area, typically expressed as the
number of people per square kilometer
or square mile. It indicates how
crowded or sparse an area is in terms
of human habitation. - The factors or conditions that attract
people to a region and the conditions
that force people out of a region is
called pull and push factor. - Professor Frederick Terman played a
pivotal role in the growth of Silicon
Valley by fostering close ties between
Stanford University and local
technology firms, encouraging
entrepreneurship among students and
faculty, and promoting research in
emerging fields like electronics and
semiconductors, which laid the
foundation for the region’s
technological dominance. - The occupational structure of a
country reflects its level of economic
development by indicating the
distribution of workforce across
sectors. Developed countries typically
have a higher proportion of workers
in industries like technology, services,
and high-skilled professions, while
developing countries may show a
larger share in agriculture and low
skilled sectors. This distribution
reflects the country’s industrialization,
technological advancement, and
overall economic complexity.
C. 1. The Green Revolution, primarily in
the 1960s and 1970s, involved the
introduction of high-yielding crop
varieties, modern agricultural
techniques, and chemical fertilizers
and pesticides. It significantly
increased agricultural productivity,
particularly in wheat and rice,
leading to higher food production
and alleviating food shortages in
many developing countries.
However, it also raised concerns
about environmental impacts, water
usage, and sustainability of intensive
farming practices. - Market gardening and horticulture
require an efficient transport system
primarily because their products,
such as fruits, vegetables, flowers,
and nursery plants, are perishable
and delicate. A reliable transport
system ensures timely delivery to
markets and customers, maintaining
product freshness and quality.
Efficient transport also reduces
transportation costs, enhances
market access, and supports the
competitiveness of growers in
supplying fresh produce to distant
markets, both locally and
internationally. - Silicon Valley, located in California,
is renowned globally as a hub for
innovation and technology, offering
several distinct advantages:
Access to Talent Pool: The region
attracts top talent from around the
world, including engineers,
entrepreneurs, and researchers,
fostering a highly skilled workforce.
This concentration of talent fuels
innovation and supports the
development of cutting-edge
technologies.
Strong Ecosystem: Silicon Valley
boasts a robust ecosystem of venture
capital firms, accelerators, incubators,
and tech giants. This network
provides critical funding, mentorship,
and resources for startups and allows
for rapid scaling and growth of
innovative ideas and companies.
Collaboration and Networking:
The Valley encourages collaboration
and networking among tech
companies, academic institutions
like Stanford University, and research
organizations. This synergy promotes
knowledge exchange, partnerships,
and the sharing of best practices,
accelerating technological
advancements.
These advantages collectively
contribute to Silicon Valley’s status
as a leading global IT hub,
continuously driving innovation,
entrepreneurship, and economic
growth in the technology sector. - Sex composition refers to the
distribution of males and females
within a population. It is a crucial
ingredient of the demographic
profile of any country because it
provides insights into gender
dynamics, social norms, and
demographic trends. Understanding
sex composition helps policymakers
in areas such as healthcare planning,
education, employment policies, and
addressing gender disparities. It also
influences social and economic
development strategies by
highlighting issues related to gender
equality, reproductive health, and
aging populations.