Population Distribution and Density

Q.

How can overpopulation affect an ecosystem?

Q. Which of the following factors affect population distribution?

1. Number of restaurants
2. Physical factors
3. Historical importance
4. Economic factors

Q. What are the effects of overpopulation?

(I)Less availability of land and resources.
(II)More plantation of tress due to more number of people.
(III)Availability of excess food grains.
(IV)Availability of resources, because more people will work to generate more resources.

1. Only (I) and (IV) are true.
2. Only (I), (II) and (IV) are true.
3. Only (I) is true.
4. Only (II) and (III) are true.

Q. Which of the following is true about areas of moderate density?

1. They have 50 people per sq. km
2. They have 10 to 50 people per sq. km
3. They have 10 people per sq. km
4. They have 100 people per sq. km

Q.

Give reason for the following
There is a need to check the present rate of Urbanization.

Q. Choose the statements that are correct.

1. Bangladesh has a high density of population.
2. Areas of high population density have above 50 people per sq.km.
3. Canada has high population density.
4. Subtropical regions have very high population densities.

Q. Which was the first country in the world to conduct census in modern times?

1. France
2. Spain
3. Denmark
4. Norway

Q. When was the first census conducted in India?

1. 1870
2. 1871
3. 1872
4. 1873

Q.

Give the biological/technical term.
The number of persons living per square kilometer at any given time.

Q. Which of the following is true about areas of moderate density?

1. They have 50 people per sq. km
2. They have 10 people per sq. km
3. They have 10 to 50 people per sq. km
4. They have 100 people per sq. km