Question
LONG ANSWER
Mention three major scientific methods of population control.

Answer

• By preventing ovulation using contraceptive pills.
• By preventing fertilisation using IUCD, condoms, vaginal diaphragms, tubectomy or vasectomy.
• By increasing the marriageable age.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Given below is a diagram representing a stage during mitotic cell division. Study it carefully and answer the question that follow.

Draw a duplicated chromosome and label its parts.
Given alongside is a diagram of the external features of the heart.
(i) Name the parts$ ‘1’$ to $‘7’.$
(ii) What happens if the coronary artery gets an internal clot?
(iii) Which type of blood does part$ ‘5’ $carry?
(iv) Mention one structural difference between part ‘5’ and$ ‘4’.$
Sketch and label the human male reproductive system.
Look at the given picture and answer the questions:

Image
(i) Name the tropic movement shown by the seedling.
(ii) Name the stimulus responsible for this movement.
(iii) Define the process shown by the seedling.
Suppose you are given two pairs of contrasting characters: Seed colour → yellow and green , seed coat → round and wrinkled.
Fill in the following table to show that $F_2$ generation according to the principle of independant assortment as given by Mendel.
Selfing among hybrids of $F_1​​​​​​​$​​​​​​​ RY Ry rY ry
RY        
Ry        
rY        
Ry        
$F_2​​​​​​​$​​​​​​​ generation        
Draw a labelled diagram of the inner ear. Name the part of the inner ear that is responsible for static balance in human beings.
Explain why respiration is said to be a reversal of photosynthesis?
What is dialysis? Under what condition is it carried out?
Leaves of a sensitive plant wilt and droop down on a slight touch. What mechanism brings about this change?
Write some benefits of a small family.