Q. Consider the following statements with respect to “Himalayan Yew”:
1. Chemical compound called ‘taxol’ is extracted from this tree, and it has been successfully used to treat some cancer
2. This tree is abundantly found in Western Ghats
Which of the following codes given below is/are correct?

[A] 1 only

[B] 2 only

[C] Both 1 and 2

[D] Neither 1 nor 2

Answer: A
Notes:

The Himalayan Yew (Taxus wallachiana) is a medicinal plant found in various parts of Himachal Pradesh and Arunachal Pradesh. A chemical compound called ‘taxol’ is extracted from the bark, needles, twigs and roots of this tree, and it has been successfully used to treat some cancers – the drug is now the biggest selling anti-cancer drug in the world. The species is under great threat due to over-exploitation. In the last one decade, thousands of yew trees have dried up in various parts of Himachal Pradesh and Arunachal Pradesh.

Landslides are relatively rapid and perceptible movements. The materials involved are relatively dry. The size and shape of the detached mass depends on the nature of discontinuities in the rock, the degree of weathering and the steepness of the slope.

Movement of water saturated clayey or silty earth materials down low-angle terraces or hillsides is known as Earthflow.

Avalanche is more characteristic of humid regions with or without vegetation cover and occurs in narrow tracks on steep slopes. Debris avalanche is similar to snow avalanche.

Source: NCERT