We should not put sharp objects into our ears.

Give biological explanation.

Why does alluvial soil differ in texture?

Give one Geographical reason: Canal irrigation is more suitable in the Northern Plains

A copper vessel of mass 100 g contains 150 g of water at 50°C. How much ice is needed to cool it to 5°C?

Given : Specific heat capacity of copper = 0.4 J g^-1 ⁰C^-1
Specific heat capacity of water =...

Give a reason: Trees must be planted in the industrial areas

Mention one disadvantage of rail transport.

Why are South Indian rivers not ideal for the inland water transport?

Given below is a diagram of a human blood smear.

Study the diagram and answer the questions that follow:

1. Name the components numbered ‘1’ to ‘4’.
2. Mention two structural differences between the parts ‘1’
...

Inert gases do not form ions.

The energy released when an electron is added to a neutral gaseous isolated atom to form a negatively charged ion.

The Union Executive which consists of the President, Prime Minister and the Council of Ministers is a powerful body in a Parliamentary Democracy. In this context, Mention any four Legislative powers of...

Mention two reasons to explain as to why we are facing water scarcity in recent times.

Which multi-purpose project provides power to both Punjab and Himachal Pradesh?

Name a manufacturing centre for each of the following industries:

1. Aircraft
2. HMT
3. Railway coaches

Mention two reasons why more people use railways rather than airways

Briefly explain the following term: Photophosphorylation