Q. Acid in the rain was first detected by ___________

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Q. _________ causes deterioration of buildings and monuments.

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Q. Expand CFC _________

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Q. ______ is mainly responsible for ozone depletion in the stratosphere.

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Q. Fossil fuels are example for ________

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Q. Nuclear energy is __________

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Q. Geothermal Energy is _________

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Q. The study of ecosystems is known as _________

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Q. The longitudinal stress is _____ stress across the section.

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Q. The longitudinal stress in the shell is _________

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Q. The ratio of hoop stress to maximum shear stress is _________

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Q. At any point on the circumference of the cylinder, the longitudinal and hoop stress are _______

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Q. Calculate the axial stress induced in the pipe is the water mean of 1.5 metres diameter and 20 mm thick is subjected to an internal pressure of 1.5 N/mm².

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Q. Saprotrophs are also known as _________

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Q. Energy flows through the ecosystem in the form of __________ bonds.

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Q. Energy does not recycle.

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Q. ____________ is a network of food chain of different types of organisms.

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Q. Ecological pyramids were first devised by __________

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Q. Which of the following is correct?

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Q. Wholesome water is also known as _________

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