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प्रश्न
What are the suggested reasons for population explosion?
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उत्तर
- Population explosion: The world population is increasing at the rate of 2 persons per second or 2,00,000 persons per day or 60 lakh persons per month or approximately 7 crore per year. This rapid increase in population is called a population explosion. This happens due to a decrease in the death rate and a lack of a desired decrease in the birth rate.
- Causes of Population Growth: The increased population in any area in a given time is called population growth. The following are the causes of population growth –
- Due to health facilities, there has been a decrease in Infant Mortality Rate (IMR) and Maternal Mortality Rate (MMR).
- Increase in the number of reproductive persons.
- Improvement in standard of living due to good health services.
- Due to illiteracy, people do not have knowledge of the means of family planning and the methods of family planning are not fully adopted.
- Increase in the production of food grains due to scientific and technological progress.
- Many epidemics can be eliminated through community health programmes.
- Due to low social status, most poor people believe that the more children they have, the more money they will earn by working.
- Due to social customs, couples keep producing children in the desire to have a son.
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संबंधित प्रश्न
Is the use of contraceptives justified? Give reasons.
Removal of gonads cannot be considered as a contraceptive option. Why?
Correct the following statement:
Oral pills are very popular contraceptives among the rural women.
A mother of a one-year-old child wanted to space her second child. Her doctor suggested 'copper- T' Explain its contraceptive action.
Short answer question.
Comment on any two mechanical contraceptive methods.
Which of the following is a hormone releasing IUD?
What is the function of macrophages in immune defense?
How is contraception achieved by a contraceptive pill?
How is contraception achieved with intra uterine devices such as copper T and loop?
What is the term used for the gonorrhoea infection caused to girls before puberty?
Which of the following are chemical barriers used as contraceptives?
Emergency contraceptives are effective if used within ______.
Diaphragms are contraceptive devices used by the females.
Choose the correct option from the statements given below:
- They are introduced into the uterus
- They are placed to cover the cervical region
- They act as physical barriers for sperm entry
- They act as spermicidal agents
Match List - I with List - II.
| List I | List II | ||
| (a) | Vaults | (i) | Entry of sperm through Cervix is blocked |
| (b) | IUDs | (ii) | Removal of Vas deferens |
| (c) | Vasectomy | (iii) | Phagocytosis of sperms within the Uterus |
| (d) | Tubectomy | (iv) | Removal of the fallopian tube |
Choose the correct answer from the options given below.
What is the significance of progesterone-estrogen combination as a contraceptive measure?
Copper ions-releasing IUDs are more efficient than non-medicated methods. Why?
Discuss the mode of action and advantages/disadvantages of hormonal contraceptives.
Given below are four contraceptive methods and their modes of action. Select the correct match:
| Method | Mode of action |
| a) Condom | (i) Ovum not able to reach Fallopian tube |
| b) Vasectomy | (ii) Prevents ovulation |
| c) Pill | (iii) Prevents sperm reaching the cervix |
| d) Tubectomy | (iv) Semen contains no sperms |
A population that exhibits birth rate identical to death rate implies ______.
When ovulation does not occur during the period of intense lactation following parturition, it is termed as ______.
Which of the following statement is incorrect?
Which of the following is a hormone-releasing contraceptive?
Given below are certain situations. Analyse the situation and suggest the name of suitable contraceptive device along with mode of action.
| Situation | Requirement of contraceptive for - | Name of contraceptive device | Mode of action |
| 1 | blocking the entry of sperms through cervix | ______ | ______ |
| 2 | spacing between children | ______ | ______ |
| 3 | effective emergency contraceptive | ______ | ______ |
| 4 | terminal method to prevent any more pregnancy in female | ______ | ______ |
| 5 | sterilization in male | ______ | ______ |
Match the columns :
| Column 'A' | Column 'B' | ||
| 1 | Mechanical means | a | Saheli |
| 2 | Physiological device | b | Jellies |
| 3 | Chemical device | c | Vasectomy |
| 4 | Permanent method | d | Diaphragm |
Name any two birth control measures which have high chances of failure.
The diagram represents a surgical sterilization method in males. Study the same and answer the questions that follow :
- Give the name of the surgical method represented in the diagram.
- Which part is ligated or cut?
- Name the corresponding surgical method conducted in females.
The technique used to block the passage of sperm in male is______.
