Frank solutions for Biology [English] Class 10 ICSE chapter 12 - Human Population [Latest edition]

Define the following:
Population 

Define the following:
Sanitation 

Define the following:
Deforestation

Define the following:
Birth control

Define the following:
Rhythm method

Define the following:
Abstainence

Define the following:
Test-tube baby

Define the following:
Birth rate

Define the following:
Death rate

Define the following:
Population density

Define the following:
Natality

"Our resources cannot keep pace with the rising population." Give three examples in support of this statement.

Give the appropriate term for the following:
The number of persons per square kilometre (km²) at any given time.

Give the appropriate term for the following:
Death rate.

State whether the following statement is true or false:
Birth rate is the number of live births per hundred of the population.

Present human population growth is following arithmetic progression.

Rapidly growing industries favoured population rise

Use of a condom for contraception is a barrier method.

Tubectomy is performed on females.

Fill in the blank:
The last census in India was taken in the year ______.

Fill in the blank:
 ______ is the size of the population in relation to unit area at a given time.

Fill in the blanks:
Sex ratio is the number of ______ per thousand ______.

Fill in the blank:
Primitive man began existence about ______ million years back.

Fill in the blank:
______ is the total number of live births per thousand people per year.

Fill in the blank:
______ is the total number of deaths per thousand people per year.

Fill in the blank:
______ is simply the number of individuals belonging to different age groups.

The diagram shown below represents a surgical sterilization method in males. Study the same and answer the questions that follow:
(i) Name the parts marked A, B, C, D and E.
(ii) Give the name of the surgical method represented in the diagram.
(iii) Which part is ligated or cut?
(iv) Name the corresponding surgical method conducted on females.
(v) Name the part which is ligated in females and why?

Choose the correct answer:
Birth rate in developing countries is __________

Choose the correct answer:
World population doubles in _______

Choose the correct answer:
The present world population is about _____________

Choose the correct answer: 
 In 1991 population of India was __________

Choose the correct answer:
Maximum physiological ability to produce offspring is _____________

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Zero population growth means _________

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Reasons for increase in human population are ______________

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An IUCD is ____________

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The oral contraceptive contains __________

Choose the correct answer:
The purpose of vasectomy is _______________