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The known forces of nature can be divided into four- gravity, electromagnetism, weak nuclear force and strong nuclear force. It is the strong nuclear force which holds protons and neutrons together inside an atom. Whereas weak nuclear force is responsible for the existence and structure of nuclei including radioactivity and nuclear fusion. Hence, option C is correct.
The yellow color of human urine is due to:
What is an excretory organ of the cockroach?
A multi-branched polysaccharide of glucose that serves as a form of energy storage in animals and fungi is:
In roots, the protoxylem lies towards the periphery and the metaxylem towards the center. This arrangement of primary xylem is called ____________.
Which of the following hormones is released in excess quantity during excitement?
Small bubbles are perfectly spherical because of –
Which of the following statements is not correct for Restriction enzymes ?
Pellagra is caused by the deficiency of which vitamin?