NDA Government Jobs Exams

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

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NDA Other Question

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 Sun emits energy in the form of electromagnetic radiation. The following help in the generation of solar
energy. Arrange them in the right sequence beginning from the starting of the cycle ?
1. Hydrogen is converted to helium at very high temperature and pressure
2. The energy finds its way to sun's surface
3. A vast quantity of energy is generated by nuclear fusion
Select the correct answer using the code given below :
(a) 1-2-3 (b) 2-3-1 (c) 3-2-1 (d) 1-3-2