Kidneys are not only organs of excretion. Their work is supplemented by
1). Liver
2). Heart
3). Large intestine
4). Skin
ANSWER: 4). Skin
1. Helium gas is used in gas balloons instead of hydrogen gas because it is
2. Sea water can be purified by the process of
3. A man is hemophiliac. This indicates that he
4. If a copper wire Is increased to double its length Its resistance will become
6. In which of the following activities silicon carbide is used?
7. In the process of magnetization of a bar
8. When a vibrating tuning fork is placed on a table a loud sound is heard. This is due to :
9. Spirit in contact with body gives cool sensation because it is :