Explanation

Exports generate revenue for a country by selling goods and services to other nations.

They contribute to economic growth, trade balance, and foreign exchange reserves.

Explanation

Sub-Himalayas are also known as Siwalik or Outer Himalayas.

Sub-Himalayan range of the northern Indian subcontinent.

Their average height varies between 600 and 1200 meters,

 The range spans the modern-day countries of :

1. Pakistan,
2. India,
3. Nepal,
4. and Bhutan.

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Explanation

The chinkara, also known as the Indian gazelle, is a species native to:

• Iran
• Afghanistan
• Pakistan 
• India

The peacock, the most beautiful of birds is found in:

• Rain forest
• Forest of Asia
• Central Africa

agm19.3.23

ND7-July-2023

Explanation

The retina contains light-sensitive cells (rods and cones) that detect light and color.

It transmits visual signals to the brain via the optic nerve.

Explanation

White blood cells (WBCs) are the body's defense cells that fight infections and diseases.

They identify and destroy harmful bacteria, viruses, and other pathogens.

Explanation

Biocatalysis uses natural catalysts (enzymes) to speed up the decomposition of organic materials.

It helps in converting biomass into useful energy sources like biofuels.

Explanation

Muscle tissues are responsible for movement through contraction and relaxation.

They enable functions like heartbeat, digestion, and voluntary movements.

Explanation

Solar cells convert sunlight directly into electricity using the photovoltaic effect.

They are widely used in renewable energy systems due to their efficiency and sustainability.

Explanation

Bacteria decompose organic matter from dead plants and animals, recycling nutrients back into the environment.

This process is essential for maintaining soil fertility and ecosystem balance.

Explanation

Humus is the dark organic material in soil formed by the decomposition of plant and animal matter.

It improves soil fertility by retaining moisture and nutrients essential for plant growth.