Last seen: May 7, 2021
(a) pull (b) attracts (c) push (d) repels
When we apply force on a rubber band to stretch it and on clay to change its shape.
(i) Push: We close drawer by pushing. We move a wooden box by pushing. (ii) Pull: We draw water from a well by pulling the rope. A horse pulls a...
(b) adrenaline
(a) thyroid gland
(b) pituitary gland
(a) 5-10 years
AIDS can be transmitted by: Sexual contact with another HIV infected person. Using syringes already used by infected person. Through the milk of...
During adolescence children may feel insecure at times. Then they may feel like taking drugs. They should not take them until prescribed by a doctor. ...
(i) In boys the voice changes due to better growth of larynx, which protrudes on the throat forming Adam’s apple. Thus, the voice becomes deep and hoa...
Endocrine Gland Hormone Pituitary Gland - Growth hormone Thyroid Gland - Thyroxine and ca...
Increased height. Better development of muscles. Change in body shape. Change in voice. More sweating from sweat glands. More secretions from oil...
(i) Ignorance - many people do not know the various methods available. (ii) Traditional beliefs - many people think children are the gift of God. ...
Population can be controlled by controlling the number of pregnancies. Many methods have been developed to avoid the sperm cells from meeting the ovum...