Monday, 18 November 2024

POPULATION

A) Definition 

1) Population 

2) Population density

3) Demography

4) Population dynamics

5) Birth rate or natality

6) Mortality

7) Fertility rate

8) Population growth

9) Growth rate

10) Write the main reasons contributing to the population grows 

11) The main reasons for high birth rate :

12) Family planning or birth control 

13) The scientific methods of birth control are:

14) Tubectomy (in females) 

15) Vasoctamy (in males) 

16) Laparoscopy.

17) Mass media

18) population education

19) Sex ratio 

20) Age ratio 

21) Physical enumeration

22) Growth rate of population

23) Population explosion 

24) Overpopulation


B) FILL IN THE BLANKS:

a) The major causes of population explosion in India is____.  (early marriage/ late marriage)

b) The scientific study of population is called_____.   ( birth rate/demography)

c) Minimum age of marriage for boys is___ and for girls____ years.  (21/25/ 18/ 23)

d) The popular sign of family planning in India is___. ( inverted triangle/ inverted blue triangle)

e) The addition of new only indivisuals to the population from other localities is called ___.   (Immigration/ emigration)

f) _____ is the cutting of fallopian tube in females.   (Vasoctamy/Tubectomy)

g) Number of people increases in ____progression while food production rises in ___ progression.    (geometric/arithmetic)

h) Amniocentesis is misuse for ____ tests.    (Sex/population)

i) ____' is the cutting of spermatic ducts in males. ( tobactomy/ vasactomy)
 


C) Name the following 

1) The exceptionally high rate growth of population.      

2) The total number of individuals of a species found in a particular areas, continent of whole Earth.   

3) Two renewable sources for mankind.   

4) Two nonrenewable sources for mankind.    

5) Changes that occur in population due to alteration in mortality, sex ratio , age groups etc.,   

6) The actual birth rate that occurs under the existing condition.   

7) The actual number of deaths in the existing condition.    

8) The method of contraception which involves determination of the women's safe period.     

9) A rubber device placed over the cervix to prevent conception.   

10) The technical term used for the difference between the birth rate and the death rate in a population.  

11) The number of individuals per unit area.   

12) The term for the statistical study of the human population 
oR
 The scientific study of human population.   

13) Two surgical techniques (one each for human male and female) that can be used to prevent pregnancy.   

14) Mutually beneficial association of two living organisms.   



D) Match the column 
Column A 
i) Demography 
ii) contraceptives 
iii) birth rate 
iv) Tubectomy 
v) abortion 
vi) mortality

Column B 
a) is the number of deaths in a specified period of time.
b) sterilization in females 
c) scientific study of population
d) termination of pregnancy
e) prevent ovulation in females
f) naatality 

 


D) VERY SHORT QUESTIONS 

1) Name some patterns of population distribution.

2) Why has growth rate increased in India despite fall in the birth rate ?

3) What is the present rate of growth of population of the world and of our country ?

4) What is emigration ?

5) What is meant by realised natality and the realised mortality?

6) What are growth curves and what do they signify ?

7) List three major landmarks in human history which contributed to sudden rise in the population of the world.

8) How much is the population density of India ?

9) What was the approximate Indian population according to the 1981 census ? What was it in 2001 ?

10) What is carrying capacity ? List some factors which determine in it.

11) Sterilization in men means preventing the flow of sperms into the seminal vesicles by cutting or ligaturing the vas deferns. Can there be corresponding operation made in woman ? if yes, where ?

12) What is meant by the family welfare centres ? What is the sign of Family Welfare in our country ?

13) Suggest some methods of fertility control in men.

14) What is the meaning of the term 'growth rate of the population'? In what situations can be negative ?

15) What are the problems created by ultimate growth of human population in urban areas ?

16) List four major disadvantages of having large families.

17) What is the emblem (sign)) of family planning and Family Welfare in India ?

18) Which is the most thickly populated state in India ?

19) List three important aspects of demography.

20) Suggest any three steps which may be taken towards controlling the rapid rise in human population in India.

21) Expand the term IUD 

22) Write the full form of MTP 

23) Choose the odd one and give a reason for your answer
Spermicide, Condom , intra-uterine device, Fungicide 

24) How is electronic media education people about the importance of small families?

25) Name any two renewable and two non-renewable resources for mankind.

26) State whether the following statements are true or false. Rewrite the wrong statements by changing only one word:
a) birth rate is the number of live births per 100 of population per year.
b) fossil fuels are renewable resources .
c) use of condom for contraception is a barrier method.

27) Explain briefly that the need to limit the size of the family is more vital today than ever before. Give two reasons.

28) Differentiate between Vasectomy and Tubectomy (parts operated)

29) Explain briefly the following term : death rate.

30) What are the age restrictions for the marriages by law for boys and girls in India ?

31) What do you understand by the density of population?

32) Name two surgical techniques (one each for human male and the female) that are used to prevent pregnancy.

33) define birth rate 

34) Mention any four reasons for the rapid increase of population in India in recent times.

35) Give the appropriate term for the following:
 The surgical method of sterilization in the human female.

36) State whether the following statement is true or false. If false , write the correct statement by changing the incorrect word or words only.
Mortality is the number of deaths per thousand of the population per decade..

37)  List the reason for the population explosion
OR
 Mention two reasons for the high birth rate in India.

38) Given below is an incomplete explanation of certain biological process/ term where a key word has been left out. Rewrite the completeed explanation by inserting the key word in the space indicating by ' '
Birth rate is the number of  ' ' births per thousand of the population per year.

39) Mention three main reasons for the sharp rise in "Human population" in the world.

E) Choose the correct answer 

1) Sterilization in males involves cutting and tying of:
a) ureter  b) urethra c) vas deferns d) epididymis 

2) The contraceptive method which is least reliable:
a) withdrawal b) diaphragm c) IUD d) condom

3) The contraceptive method which is most reliable :
a) diaphragm b) IUD c) withdrawl  d) contraceptive pill 

4) thre contraceptive method which is a barrier method used to by the male :
a) IUD b) withdrawal  c) hormonal pills d) condom

5)  sterilization in females involves cutting and tying the:
a) ureter  b) uterus c) Urethra d) oviduct



F) Observe the diagrams A and B given below:
a) level partr 1-5 
b) what does diagram A depict ?
c) what does diagram B depict ?
d) comment on X and Y.
e) state one function each of part 2 and 4.


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