NDA Government Jobs Exams

In India, increase in population and diversion of agricultural land for non-agricultural purposes have resulted
in the decrease of -
(a) forested land (b) cultivable wasteland
(c) net sown area (d) double-cropped area

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NDA Other Question

Consider the following statements regarding osmosis in animal cells -
1. If the water potential of the solution surrounding the cell is too high, the cell shirnks
2. If the water potential of the solution surrounding the cell is to low, the cell swells and bursts.
3. It is important to maintain a constant water potential inside the animal body
4. In animal cells, water potential far exceeds the solute potential
Which of the statements given above is/are correct ?
(a) 1 and 2 (b) 3 only (c) 4 (d) 2 and 3 Radioactive decay provides an internal source of heat for the earth. This helps in the formation of which type
of rocks ?
(a) Igneous (b) Sedimentary (c) Metamorphic (d) All of the above