Prelims

Consider the following trees :
1. Jackfruit (Artocarpus heterophyllus)
2. Mahua (Madhuca indica)
3. Teak (Tectona grandis)
How many of the above are deciduous trees?

With reference to ‘Gucchi’ sometimes mentioned in the news, consider the following statements :
1. It is a fungus
2. It grows in some Himalayan forest areas
3. It is commercially cultivated in the Himalayan foothills of north-eastern India

Which of the statements given above is correct?

Which of the following are nitrogen-fixing plants?
1. Alfalfa
2. Amaranth
3. Chickpea
4. Clover
5. Puslane (Kulfa)
6. Spinach
Select the correct answer using the code given below

Consider the following statements:
1. Moringa (drumstick tree) is a leguminous evergreen tree.
2. Tamarind tree is endemic to South Asia.
3. In India, most of the tamarind is collected as minor forest produce.
4. India exports tamarind and seeds of moringa.
5. Seeds of moringa and tamarind can be used in the production of biofuels.
Which of the statements given above are correct?

In nature, which of the following is/are most likely to be found surviving on a surface without soil?
1.Fern
2.Lichen
3.Moss
4.Mushroom
Select the correct answer using the code given below:

Which one of the following is used in preparing a natural mosquito repellent?

Which of the following leaf modifications occur(s) in the desert areas to inhabit water loss?
1. Hard and waxy leaves
2. Tiny leaves
3. Thorns instead of leaves
Select the correct answer using the code given below:

With reference to ‘Red Sanders’, sometimes seen in the news, consider the following
statements:
1. It is a tree species found in a part of South India.
2. It is one of the most important trees in the tropical rain forest areas of South India.
Which of the statements given above is/are correct?

With reference to Neem tree, consider the following statements:
1. Neem oil can be used as a pesticide to control the proliferation of some species of insects and
mites.
2. Neem seeds are used in the manufacture of biofuels and hospital detergents.
3. Neem oil has applications in pharmaceutical industry.
Which of the statements given above is/are correct?

Which of the following leaf modifications occurs/occur in desert areas to inhibit water loss?
(1). Hard and waxy leaves
(2). Tiny leaves or no leaves
(3). Thorns instead of leaves
Select the correct answer using the codes given below.