Q: Name the two rock series of two main geological ages in which coal occurs.

In India, coal occurs in rock series of two main geological ages. The Gondwana coal was formed over 200 million years ago. The tertiary deposits are about 55 million years old. The major sources of Gondwana coal are located in the Damodar valley (West Bengal-Jharkhan). In this belt, Jharia, Raniganj and Bokaro are important coalfields. Coal deposits are also present in the Godavari, Mahanadi, Son and Wardha valleys. Tertiary coal is found in the north-eastern states of Meghalaya, Assam, Arunachal Pradesh and Nagaland.

Question 1

Explain the three types of plates and write the effects of the movements of plates.

Accepted Answer

The plate movements are classified into three types:(i) Some plates come towards each other and form convergent boundaries.(ii) Some plates move away from each other and form divergent boundary.(iii) At times, they may also move horizontally past each other and form transform boundary.When two plates come together, they are known as convergent plates. They are also known as constructive plates. When two plates move far away from each other, they are known as divergent plates. When two plates coming towards each other collide or burst pass, they are known as transform plate. The movement of plates causes volcanic eruptions, earthquakes, formation of mountains, etc.

Question 2

Which of the following species are rare species?

Accepted Answer

Red panda & Musk deer are rare species.

Question 3

Match the following.List I(Vegetation)List II(Continents)(A) Steppe(1) Australia(B) Prarie(2) North America(C) Pampas(3) South America(D) Velds(4) Asia(E) Down(5) Africa

Accepted Answer

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Question 4

Which one among the following is the largest tiger reserve of India in terms of area of the core/critical tiger habitat?

Accepted Answer

Name   core/critical area  Manas Assam (840 sq km)  Pakke Arunachal ( 683 sq km) Nagarjunsagar Andhra Pradesh (2595 sq km) Periyar  Kerala (881 sq km)

Question 5

Which one of the following Indian states has the highest proportion of area under forest cover?

Accepted Answer

According to the India State of Forest Report (ISFR) 2015 released here, the total forest and tree cover is 79.42 million hectare, which is 24.16 percent of the total geographical area. Madhya Pradesh has the largest forest cover of 77, 462 sq km in the country. Mizoram, with 88.93 percentage of forest cover has the highest forest cover in percentage terms.

Question 6

Which of the following statements is true about the rainforests?

Accepted Answer

A rainforest is a forest that receives heavy rainfall. The most notable rainforests are in the tropics or subtropics. They have extraordinary biodiversity.The biggest rainforest is the Amazon rainforest and is considered to be the lungs of Earth due to the amount of oxygen it supplies.

Question 7

Name the two rock series of two main geological ages in which coal occurs.

Accepted Answer

&#10;&#10;In&#10;India, coal occurs in rock series of two main geological ages. The Gondwana&#10;coal was formed over 200 million years ago. The tertiary deposits are about 55&#10;million years old. The major sources of Gondwana coal are located in the&#10;Damodar valley (West Bengal-Jharkhan). In this belt, Jharia, Raniganj and&#10;Bokaro are important coalfields. Coal deposits are also present in the&#10;Godavari, Mahanadi, Son and Wardha valleys. Tertiary coal is found in the&#10;north-eastern states of Meghalaya, Assam, Arunachal Pradesh and Nagaland. &#10;&#10; &#10;&#10;

Question 8

The plants growing in water are called ________.

Accepted Answer

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Question 9

Why are tropical rainforests found near the equator?

Accepted Answer

Tropical rainforests are found near the equator due to the amount of rainfall and the amount of sunshine these areas receive. Most tropical rainforests fall between the Tropic of Cancer and the Tropic of Capricorn.These areas receive more sunlight and the amount of sunlight and intensity of the sunlight the tropics receive doesn't vary much in comparison to other parts of the globe. The high temperatures means that evaporation happens at a fast rate, resulting in frequent rainfall.

Question 10

Arrange the following states in decreasing order of their total area under forest cover:
1. Jharkhand
2. Chhattisgarh
3. Arunachal Pradesh
4. Madhya Pradesh
Select the correct answer using the code given below:

Accepted Answer

Following are the states with their respective percentage of forested areas as per the data published by the Forest Survey of India in 2017.Arunachal Pradesh - 79.96% ; Chhattisgarh -41.09% ; Jharkhand - 29.55% ; Madhya Pradesh - 25.11%

List I (Vegetation)	List II (Continents)
(A) Steppe	(1) Australia
(B) Prarie	(2) North America
(C) Pampas	(3) South America
(D) Velds	(4) Asia
(E) Down	(5) Africa