1000 questions & answers

Name the different layers of the atmosphere.

Why is the earth called the ‘blue planet’?

Why is the Northern Hemisphere called the Land Hemisphere?

Why is the Biosphere important for living organisms?

Tick the correct answers.

(a) The mountain range that separates Europe from Asia is
(i) the Andes (ii) the Himalayas (iii) the Urals

(b) The continent of North America is linked to South America by
(i) an Isthmus (ii) a Strait (iii) a Canal

(c) The major constituent of the atmosphere by per cent is
(i) Nitrogen (ii) Oxygen (iii) Carbon dioxide

(d) The domain of the earth consisting of solid rocks is
(i) the Atmosphere (ii) the Hydrosphere (iii) the Lithosphere

(e) Which is the largest continent?
(i) Africa (ii) Asia (iii) Australia

Fill in the blanks.

(a) The deepest point on the earth is _____________ in the Pacific Ocean.
(b) The _____________ Ocean is named after a country.
(c) The _____________ is a narrow contact zone of land, water and air that supports life.
(d) The continents of Europe and Asia together are known as _____________.
(e) The highest mountain peak on the earth is _____________.

Name the major physical divisions of India

India shares its land boundaries with seven countries. Name them.

Which two major rivers fall into the Arabian Sea?

Name the delta formed by the Ganga and the Brahmaputra.

How many States and Union Territories are there in India? Which states have a common capital?

Why do a large number of people live in the Northern plains?

Why is Lakshadweep known as a coral island?

Tick the correct answers.

(a) The southernmost Himalayas are known as
(i) Shiwaliks (ii) Himadri (iii) Himachal

(b) Sahyadris is also known as
(i) Aravali (ii) Western Ghats (iii) Himadri

(c) The Palk Strait lies between the countries
(i) Sri Lanka and Maldives
(ii) India and Sri Lanka
(iii) India and Maldives

(d) The Indian islands in the Arabian Sea are known as
(i) Andaman and Nicobar Islands
(ii) Lakshadweep Islands
(iii) Maldives

(e) The oldest mountain range in India is the
(i) Aravali hills (ii) Western ghats (iii) Himalayas

Fill in the blanks.

(a) India has an area of about ________________.
(b) The Greater Himalayas are also known as_________________.
(c) The river Narmada falls into the __________________ sea.
(d) The latitude that runs almost halfway through India is ___________.

How does the type of cropping pattern practised by farmers impact the biodiversity of the area, and why is it important to maintain this biodiversity?

Can you describe the advantages and disadvantages between traditional and modern methods of irrigation, and how it impacts crop yield and the environment?

Explain the role of Rhizobium bacteria in soil replenishment and how this impacts crop yield. Can you think of any other beneficial relationships between plants and bacteria? 

What are the consequences of excessive use of chemical fertilisers on the soil environment and the overall ecosystem? 

Discuss the implications on food security if improper storage and management of harvested crops were to occur. Can we prevent this from happening and what steps should we take in order to mitigate this problem?