Population The Increasing Numbers and Rising Problems ICSE Class 10 Biology Board Exam Questions

Students should refer to Population The Increasing Numbers and Rising Problems ICSE Class 10 Biology Board Exam Questions provided below with solutions. These will help the students to understand the type of questions which have been asked in previous year examinations and the type of solutions which the student should give to get good marks. You should also refer to ICSE Class 10 Biology Sample papers for more practice

ICSE Class 10 Biology Population The Increasing Numbers and Rising Problems Important Questions

Students should learn the important questions and answers given below for Chapter Population The Increasing Numbers and Rising Problems in Biology for ICSE Class 10. These board questions are expected to come in the upcoming exams. Students of ICSE Class 10th should go through the Important questions and answers ICSE Class 10 Biology which will help them to get more marks in exams.

Population The Increasing Numbers and Rising Problems ICSE Class 10 Biology Board Exam Questions

Population The Increasing Numbers and Rising Problems ICSE Class 10 Biology

Question. Give the importance of forests as a natural resources.
Ans. Importance of forest are :
a) Forests provide us timber, firewood, resins, medicines, wood pulp for paper etc.
b) Forests give O₂ to the atmosphere and take CO₂ for its process of photosynthesis.
c) The forests bring rain and prevent floods.
d) Forests balance the percentage of O₂ and CO₂ in the atmosphere.

Question. What are the factors responsible for population explosion in India?
Ans. The factors responsible for population explosion in India are :-
a) Illiteracy
b) Traditional belief that children are god’s gift.
c) High mortality rate so, have more children.
d) Economic reasons, as to increase the income of family.
e) Religious and social customs, bars people to accept family planning norms.
f) Desire for a male child.
g) Lack of recreation other than sex.

Question. Name two surgical techniques that can be used to prevent pregnancy?
Ans.

Question. Mention two areas of medical science which have indirectly contributed to high growth human population.
Ans. The 20th century (1901 to 2000) witnessed remarkable discoveries in medical science, specially the antibiotics and the prophylactic vaccinations against many diseases.

Question. What is the population density of India?
Ans. India has about 392 persons / km2 population density

Question. Give the classification of Natural Resources.
Ans.

Question. What measures will control over population?
Ans. Over population can be controlled by the following measures:
a) Age restriction for marriage by law, for boys is 21 years and for girls it is 18 yrs. which must be strictly followed.
b) Introduction of population education in schools and college curriculum.
c) Greater attention to be paid to girl’s education.
d) Greater use of motivation programmes through various media as news papers, radio, T.V. posters, slogans etc. to impress upon the minds of people the advantages of having small families.
e) People should be advised to adopt family planning methods, leading to small families norms, by producing fever children with proper spacing between them.
f) The latest methods to bring down the rate of increasing population is birth control.

Question. Give the approximate figures for the population in India in million at
a) the beginning and b) the end of 20th century.
Ans. a) In the year 1901 the approximate population in India was 238 millions.
b) The end of 20th century the approximate population in India was 1027 millions.

Question. For a better future of mankind, what is the best remedy?
Ans. For a better future of mankind, the rate of growth of human population must be reduced.

Question. What do you mean by Natural Resources?
Ans. Natural resources are referred to biophysical materials that satisfy human wants and provide direct inputs to human well-being.

Question. There is a need for adopting population control measures. Give reason.
Ans. As the population density increases in a country beyond its means, it brings many problems, for example :
♦ Per capita income comes down.
♦  Natural resources like land, minerals, wood, fuel, etc., decrease.
♦  General health goes down
Overall, the large population of a country is the result of having large families and the quality of the life goes down. Therefore, there is pressing need for adopting population control measures.

Question. Match the Column I to appropriate answer from Column II and rewrite the correct matching pair.

Ans.

Question. How long the reserves of petroleum and coal will last?
Ans. The reserves of petroleum may get exhausted within 150 years, coal may last a bit longer.

Question. What are the three aspects covered under family welfare?
Ans. The three aspects of family welfare are :
a) Family planning in terms of having a small family.
b) Total welfare of small families, including the diet and nutrition of the child and of the pregnant mother.
c) Subsequent case of the children, e.g., Immunisation and oral rehydration therapy etc., to ensure survival of the young ones.

Question. Name the two major sources of energy at present.
Ans. The two major sources of energy at present are coal and petroleum, which are also called fossil fuels.

Question. What does human population today depend on?
Ans. Human population today depends on a number of natural resources which in course of time would become more and more scarce.

Question. Which country has the highest population density?
Ans. Netherlands has the highest population density – about 407 persons / km2

Question. According to 2006 survey what was the approximate population in India?
Ans. The human population in 2006 in India was more than 1.08 billion.

Question. Mention two reasons for the rapid increase of populaton in India
Ans. In India religious and social customs do not allow families to accept family planning norms.
Secondly; a desire for a male child to keep up the name of the family and Indians believe that male child will be a great help to the aged parents.

Question. What problems arise as the population-density increases in a country beyond its means?
Ans. The consequences of higher population density, are as below:-
(a) per capita income comes down.
(b) natural resources like land, minerals, wood, fuel etc. come under pressure.
(c) General health goes down.

Question. Give six main reasons for a sharp rise in the WORLD HUMAN POPULATION in the recent past.
Ans. The six main reasons are :-
a) Better health care for all age groups.
b) Fewer deaths due to better medical aid.
c) Food shortage minimised due to green revolution.
d) Improved nutrition due to consciousness.
e) Large scale immunisation against fatal diseases.
f) Fewer infant deaths more people reach reproductive age which contributes to population growth.

Question. How many babies in India, do not survive beyond the age of five?
Ans. 45 out of 1,000 babies born in India, do not survive beyond the age of five.

Question. Is the present day human population growth following a J-shaped curve or S-shaped curve?
Ans. The present day human population growth is J-shaped curve as the population is doubling in size during a constant period of time ( exponential growth) and it gives a J-shaped growth curve.

Question. Enlist the disadvantages of large families
Ans. (a) The mother may suffer from ill health.
(b) Children are neglected at home.
(c) Poor housing
(d) Malnutrition
(e) Insufficient medical care for both mother and children
(f) Poor clothing

Question. How many babies die in India, at birth?
Ans. At least 35 out of every 1,000 babies born, die at birth.

Question. Give the various methods of birth control ?
Ans. Birth control can be done by the following methods to delay or stop the birth of a new child
a) Use of contraceptive like nirodh, loops, or diaphragms to bar the entry of sperm into the fallopian tubes.
b) Use of chemical method, such as control pills like Mala D, some creams and jellies which are spermicidal.
c) Undergoing surgical methods like Tubectomy (for females), Vasectomy (in males) which has no harmful effects.
d) Induced abortion or Medical Termination of Pregnancy (MTP) for women is done free of cost at any government hospital and it is legal.

Question. Which day is deputed as World Population Day?
Ans. July 11th is observed as World Population Day.

Question. Production of food rises by arithmetic progression, while population grows by geometrical progression – explain.
Ans. One most important need of human is food. By bringing more land under cultivation and by using better farming methods, food production rises in arithmetic progression in a pattern of 1,2,3,4,5,……….. i.e., by adding up at each step.
In the case of rise in population, the number of people increase in geometrical progression. It is more or less in a pattern of 2,4, 8, 16 . . . . . . i.e., the number at each step are being multiplied.

Question. Name the three great cultural revolutions that favoured a steep rise in population
Ans. The three great cultural revolutions that favoured a steep rise in population are :
a) Tool making revolution
b) Agricultural revolution
c) Scientific and Industrial revolution.

Question. What is a family welfare centre? What is its sign in India?
Ans. The inverted red triangle is the popular sign of welfare centre in India. It is the sign which is displayed at all such offices and hospitals where any help or advice about family welfare (family planning) is available, free of cost. These are known as family welfare centres.

Question. Name the six main resources which are under pressure in India?
Ans. They are : (1) Food (2) Land (3) Forests (4) Water (5) Energy (6) Minerals.

Question. Write the full form of MTP.
Ans. Full form of MTP is Medical Termination of Pregnancy.

Question. When did India become a country of 1 billion?
Ans. On 11th may 2000, the population of India officially crossed the 1 billion mark (1, 000 million). (As per data from the Registrar General and Census Commissioner of India.)

Question. What is the present rate of growth of population of the world and of our own country?
Ans. The current rate of growth (2006) of population in India is about 2.07% which is very high when we compare it with that of the world which is little less than 2%.

Question. Name the following :-

1. Number of deaths per 1000 of population per year.

2. A group of organisms of a single species in an ecosystem.

3. Fitting of these caps in the vagina prevent the entry of sperms into the uterus.

5. Name the surgical technique that can be used to prevent sperm passage in human male.

6. Name the surgical technique that can be used to prevent pregnancy in women.

7. Birth rate is also known as.

8. Methods of prevention of pregnancy and preventive methods for men too.

9. The statistical study of human population.

10. Number of human beings living per square kilometres.

Question. Choose the correct answer to the following

1. Community Health Services’ include.
(a) Taking care of old and handicapped persons.
(b) Weaning away the addicts form ‘drugs’.
(c) Immunization of children against infectious diseases.
(d) Many more than these.

2. Sudden and sharp increase in the number of individuals of population is called.
(a) Population dynamics
(b) Population explosion
(c) Zero population
(d) Population density

3. Contraceptive pills prevent ovulation by.
(a) blocking fallopian tube
(b) inhibitng release of FSH and LH.
(c) stimulating release of FSH and LH
(d) causing immediate degeneration

4. Sterilization in the female involves cutting and tying the.
(a) Ureter
(b) Uterus
(c) Urethra
(d) Oviduct.

5. Explosive population has adverse effect on.
(a) Nutrition and health
(b) Education and job opportunities
(c) Standard of living
(d) All of these.

6. The purpose of vasectomy is
(a) To make the testis atrophy
(b) To stop the production of sperm
(c) To prevent the presence of sperms in the semen.
(d) To kill the sperms present in the semen

7. The use of Condom prevents the transmission of.
(a) Cancer
(b) Leprosy
(c) AIDS
(d) Hepatitis.

8. The decline phase of a population occurs when.
(a) mortality > natality
(b) natality > mortality
(c) mortality = matality
(d) natality is equal.

9. Main cause of population explosion in the world is.
(a) excellent job facilities
(b) increase in agricultural production.
(c) excellent health care
(d) fewer battles and wars.

10. At present human species produces
(a) 100 males for every 106 female births
(b) 106 males for every 100 female births
(c) 106 males for every 94 female births
(d) 100 males for every 100 female births

11. Sterilization in male involves cutting and tying the ends of.
(a) Epididymis
(b) Vas deferens
(c) Ejaculatory duct
(d) Oviduct

12. Population shows positive growth when.
(a) Natality exceeds mortality
(b) Mortality exceeds natality
(c) Natality and mortality are equal
(d) None of these.

13. Vasectomy is.
(a) indirect measure to control population.
(b) educational measure to control population.
(c) national policy to control population.
(d) direct measure to control population.

14. The concept that population tends to increase geometrically while the food supply increases arithmetically was put forward by.
(a) S. Mill
(b) Adam Smith
(c) T. Malthus
(d) Darwin

15. Natality means.
(a) Individuals born in population
(b) Individual born per 1000
(c) Individuals born per year
(d) All of these.

16. An inverted red triangle is the symbol of
(a) World welfare
(b) Family Welfare
(c) Country welfare
(d) Town welfare

17. Demography can be best defined as
(a) Study of relationship between living and non- living components of the environment
(b) The study of factors affecting the population density
(c) Study of trends in human population growth
(d) None of these

18. T.R. Malthus wrote.
(a) An essay on population
(b) Origin of Species
(c) Discovery of India
(d) Text book of Mathematics

19. In vasectomy operation, a small portion of
(a) Testis is removed
(b) Ovary is removed
(c) Oviduct is removed
(d) Sperm duct is removed

20. Zero population growth is the situation when.
(a) no off springs are born
(b) there is starvation.
(c) there is no death
(d) natality is equal to those leaving the population.

21. Population can be best defined as
(a) Organisms of a species
(b) Organism of different species living at a place
(c) Organisms of a species occupying same area
(d) Human being residing in a country or town.