Science (English Medium) इयत्ता ११ - CBSE Question Bank Solutions for Geography

Define the term ‘mineral’.

Name the major classes of minerals with their physical characteristics.

In which of the following stages of landform development, downward cutting is dominated?

A deep valley characterised by steep step-like side slopes is known as ____________.

What do incised meanders in rocks and meanders in plains of alluvium indicate?

Running water is by far the most dominating geomorphic agent in shaping the earth’s surface in humid as well as in arid climates. Explain.

Which one of the following gases constitutes the major portion of the atmosphere?

Sea salt, pollen, ash, smoke soot, fine soil – these are associated with:

Oxygen gas is in negligible quantity at the height of atmosphere:

Which one of the following gases is transparent to incoming solar radiation and opaque to outgoing terrestrial radiation?

Describe the composition of atmosphere.

Describe the composition of the atmosphere.

What are the different levels of biodiversity?

What do you understand by the term ‘ecology’?

What is an ecological system?

Make correct pairs from the following two columns.

In India, why is the day temperature maximum in May and why not after the summer solstice?

How do the latitude and the tilt in the axis of rotation of the earth affect the amount of radiation received at the earth’s surface?

If the surface air pressure is 1,000 mb, the air pressure at 1 km above the surface will be:

What is the unit used in measuring pressure? Why is the pressure measured at station level reduced to the sea level in preparation of weather maps?