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प्रश्न
What are the suggested reasons for population explosion?
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 seven crore per year. This rapid increase in population is called a population explosion. This is due to the decrease in death rate and the lack of desired decrease in birth rate. - Increase in population and its causes
The increased population in any area at a given time is called population growth. The following are the reasons for population growth –- Due to health facilities, the Infant Mortality Rate (IMR) and Maternal Mortality Rate (MMR) have decreased.
- Increase in the number of reproductive individuals.
- Improvement in the 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 eradicated 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 having children because of the desire to have a son.
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संबंधित प्रश्न
Correct the following statement:
Oral pills are very popular contraceptives among the rural women.
Short answer question.
Comment on any two mechanical contraceptive methods.
______ is not a permanent method of birth control.
Identify the permanent birth control method in given diagram.
Amniocentesis can be used to determine ______.
Emergency contraceptives are effective if used within ______.
Condoms are one of the most popular contraceptives becuase of the following reasons.
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.
Mention two advantages of lactational amenorrhea as a contraceptive method.
Comment on the essential features required for an ideal contraceptive.
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 ______.
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 | ______ | ______ |
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______.
