Question

Reading of the lower meniscus of water when
S. No.
Solid body is not immersed
in water R, (mL)
Solid body is fully immersed
in water R, (mL)
Volume of Solid body,
V = (R2-R) mL
​

Answer 1

Explanation:

The earth has four principal biological systems. These are: fisheries, forests, grasslands and croplands. They form the basis of the world's economic system. They supply us food and raw materials for industry.