Population Explosion and It's Causes

Q.

Which of the following statements defines the density of population?

1. Number of persons living per unit area.

2. Number of persons living in a country.

3. Change in the number of inhabitants of a country during a specific period of time.

4. Absolute number of people added every year.

Q.

July 11 is

1. World Environment Day

2. World Population Day

3. World AIDS Day

4. World education Day

Q. High infant mortality and maternal mortality rates have contributed to population explosion.

1. False
2. True

Q.

As of 2015, the world’s population has touched

1. 4 billion

2. 5 billion

3. 6 billion

4. 7 billion

Q.

In India, human populations heavily weighted towards the younger age groups as a result of______

1. Short life span of many individuals and low birth rate

2. Short lifespan of many individuals and high birth rate

3. Long life span of many individuals and low birth rate
   

4. None of these
   

Q.

Main causes of population explosion are:

1. Improved technology
2. Famines
3. Wars
4. Large epidemics

Q.

The number of live births per thousand persons in a year is termed as -

1. Birth Rate

2. Death Rate

3. Population growth

4. None of these

Q. War is a good way to decrease population explosion.

1. True
2. False

Q.

People are living for longer periods and are reproducing lesser than ever before.

1. True

2. False