Q. What is the size range of atmospheric particulate matter?

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Q. In rural areas, what has contributed significantly to particulate pollution?

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Q. Below which of the following pH is rain regarded as ‘acid rain’?

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Q. Glass containers are generally not preferred for sampling rain water. Why?

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Q. Which of the following gases are main contributors to acid rain?

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Q. What does the term “liming” mean?

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Q. Which place in India receives the highest annual rainfall?

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Q. Who discovered the phenomenon of acid rain?

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Q. Which of the following is/are natural contributor(s) to sulphur dioxide in the atmosphere?

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Q. What is the pH required for the survival of aquatic animals and plants?

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Q. The acidic air pollutants reach the Earth’s surface because of wet deposition only.

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Q. Which of the following gases is responsible for the yellowing of the Taj Mahal?

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Q. Formation of aerosols by nucleation produces particles of size __________

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Q. The size of aerosol particles formed mechanically is minimum 1 micron.

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Q. What is the statement of the Kelvin effect in fluid droplets?

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Q. When a given gas has a temperature gradient, the aerosol particles move from higher temperature regions to low temperature regions. This effect is known as __________

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Q. Particle movement due to photophoresis depends on _________

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Q. The movement of particles from region of lower vapour to high vapour molecule concentration is known as diffusiophoresis.

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Q. Which of the following scattering phenomena is responsible for the blue colour of the sky?

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Q. When light is passed through a suspension, it’s intensity decreases due to _________

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