The energy of the sun is mainly due to
1). nuclear fission
2). radioactivity
3). heat
4). nuclear fusion
Answer This Question with Explaination and Earn! Click Here to Know More!
1. Diamonds are glittering and attractive because light Incident on them undergoes
2. The first metal used by a man was
3. The common name for the compound having formal NaOH is
4. In which of the following substances all carbon atoms are quaternary in nature ?
6. Permanent hardness of water may be removed by addition of
7. Cloud is a colloidal dispersion of
8. The number of hydrogen bonds between guanine and cytosine in DNA is
9. What is the element that is in the highest percentage in the composition of the earth ?