Population Density

Correct answer: A. Four hundred persons per square kilometre

Dividing eight lakh by two thousand gives four hundred. Exam tip: apply ( \text{Density} = \frac{\text{Population}}{\text{Area}} ) correctly.

Correct answer: B. The area with smaller area

With the same population, a smaller area has more people per unit area. Exam tip: always check area in comparisons.

Correct answer: C. Because density depends on both population and area

Population density relates total population with area. Exam tip: keep total population and density separate.

Correct answer: D. Density will increase

When population increases in the same area, people per unit area increase. Exam tip: connect population increase with density increase.

Correct answer: A. Density will decrease

If the same population spreads over a larger area, people per unit area decrease. Exam tip: understand the effect of area change.

Correct answer: B. Three hundred eighty two persons per square kilometre

In 2011, India's average density was about 382 persons per square kilometre. Exam tip: remember the figure approximately.

Correct answer: C. High population compared to smaller area

Bihar has high density because population is high compared to area. Exam tip: connect Bihar with high density example.

Correct answer: D. Difficult mountainous terrain and low connectivity

Difficult terrain and low connectivity can limit settlement. Exam tip: connect physical constraints with low density.

Correct answer: A. Four hundred persons per square kilometre

The direct answer is A: four hundred persons per square kilometre. Convert six lakh to 600,000 and fifteen hundred to 1,500. Apply density = population ÷ area: 600,000 ÷ 1,500 = 400. A quick check is 1,500 × 400 = 600,000, so the calculation is verified. Option A is correct and has the correct unit. Option B, 600, would give 900,000 people in that area, so it is too high. Option C, 1,500, would give 2,250,000 people, also much too high. Option D, 200, would give only 300,000 people, so it is too low. Do not divide 1,500 by 600,000, and do not forget that one lakh equals 100,000.

Correct answer: B. The first area

With the same area, the area with higher population will have higher density. Exam tip: compare both population and area.

Correct answer: C. Land, water, housing and services

In high density, needs of more people rise over limited resources. Exam tip: connect high density with resource pressure.

Correct answer: D. Providing services to scattered people

In low density, people may be scattered, so service delivery can be difficult. Exam tip: write planning challenges of sparse settlement.

Correct answer: A. Increasing housing, water and transport capacity

Rapidly rising density puts pressure on basic facilities. Exam tip: connect urban density with infrastructure planning.

Correct answer: B. Check both population and area

Density is a ratio, so both population and area are needed. Exam tip: remember the formula in comparison.

Correct answer: C. On average five hundred people live in one square kilometre

Population density tells average people per square kilometre. Exam tip: understand the difference between total and per unit.

Correct answer: D. It can still be high

A small area can increase density despite low total population. Exam tip: understand density as a ratio.

Correct answer: A. Density shows possible pressure but resource capacity must also be checked

The impact of density is linked with capacity of resources and services. Exam tip: read density with context.

Correct answer: B. Resource-based development may increase settlement

Resources can attract employment and development, changing density. Exam tip: understand the idea of dynamic density.

Correct answer: C. Five hundred persons per square kilometre

Dividing twenty five lakh by five thousand gives five hundred. Exam tip: write the unit after calculation.

Correct answer: B. Because density includes the effect of area

A small area can have high density even with lower total population. Exam tip: keep total and density separate.

Correct answer: B. Local concentration should be checked separately

The direct answer is B: local concentration should be checked separately. An average is a summary for the whole district; it does not mean that every locality has the same density. Step by step: the district’s total population is combined; its total area is used to calculate one average; crowded neighbourhoods and less crowded places are mixed into that number; therefore the average can hide local differences. B is correct because local maps, neighbourhood data or smaller-area densities are needed to see the uneven pattern. A is wrong because an average does not give the exact condition of every place. C is wrong because density study remains useful when interpreted carefully. D is wrong because a medium average cannot mean zero population. Memory cue: “average describes the whole, not every part.”

Correct answer: B. No, rugged terrain or poor accessibility can also cause low density

Low population density does not conclusively prove that resources are scarce. Factors such as rugged mountainous terrain, harsh climate, lack of transport, and poor accessibility can also limit settlement. Option A is incorrect because resources influence density but are not the only factor. Exam tip: while interpreting population density, consider physical conditions and accessibility as well.

Correct answer: A. Density may increase as settlement grows

Good transport can increase settlement by linking people and jobs. Exam tip: treat transport as a density factor.

Correct answer: A. People start settling due to job opportunities

Industries can attract people by providing jobs. Exam tip: connect employment with high density.

Correct answer: B. Low

Water scarcity and harsh climate can limit settlement. Exam tip: connect harsh conditions with low density.