Answer: C

Explanation:

The British understood the economic importance of forests in India and hence, they started exploiting them on a large scale. Due to this the structure of the forests also started changing. Pine trees were grown in place of oak found in Garhwal and Kumaon, which were necessary for laying railway tracks. Forests were also cleared to establish tea, coffee and rubber plantations. Wood is heat resistant, Hence, the British used it extensively in building construction. Hence, option (c) is the correct answer.

Answer: B

Explanation:

The delta formed by the Ganga and Brahmaputra rivers is known as the Sundarban Delta, which is located in West Bengal. Sundarban Delta is the largest and fastest growing delta in the world. The name of Sundarban Delta is taken from the Sundari plant found there. Royal Bengal tigers are also found here. Hence, statement 1 is incorrect and statement 2 is correct.

Answer: C

Explanation:

Red laterite soils are more suitable for the cultivation of tree crops like cashew in Tamil Nadu, Andhra Pradesh and Kerala. Laterite soils are used to make bricks for building houses. These soils have developed mainly in the higher areas of the peninsular plateau. Laterite soils are commonly found in the hilly areas of Karnataka, Kerala, Tamil Nadu, Madhya Pradesh and Odisha and Assam. Hence, both statements 1 and 2 are correct.

Answer: C

Explanation:

Several measures can be taken to prevent global warming, including, reducing the use of fossil fuels, reducing deforestation, improving energy efficiency, increasing the use of renewable energy sources, Intergovernmental Panel on Climate Change (IPCC) This includes following the recommendations etc. Hence, option (c) is the correct answer.

Answer: A

Explanation:

The area drained by a river and its tributaries is called 'drainage basin'. The boundary separating one drainage basin from another is called 'watershed' or 'watershed'. The catchment area of ​​big rivers is called river basin while the area drained by small rivers and drains is called 'watershed'. The size of a river basin is large, while the size of a watershed is small. Hence, statement 1 is incorrect.

River basin and watershed are symbols of unity. The effect of changes in one part can be seen in other parts and the entire area. That is why these can be taken as micro, medium and large planning units and areas. Hence, statement 2 is correct.