Consider the following layers of the atmosphere :

1. Troposphere
2. Stratosphere
3. Mesosphere
4. Thermosphere

Which one among the following is the correct sequence of the layers with increasing altitude from the Earth’s surface?

The rigid lithospheric slabs are known as ‘Plates’. What would be the result, if the oceanic plate collides with the continental plate?

1. Oceanic plate is forced below the continental plate.
2. Continental plate is forced below the oceanic plate.
3. Continental and oceanic plates never collide.

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It is known that the atmosphere is divided into some layers. In which one among the following layers, is the percentage composition of Helium gas maximum?

Esker is a geomorphic feature developed by

Which of the following are the results of EI Nino?

1. Reduction in the amount of planktons which further reduces the number of fish in the sea.
2. Irregularities in the evaporation of sea water.
3. Distortion of equatorial atmospheric circulation.

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Statement I :
I. Zinc is used for galvanization to protect iron from rusting.
Statement II :
II. Zinc is more reactive towards oxygen than iron.