1. Which one of the following is a reason why astronomical distance are measured in light-years?

1. Distance among stellar bodies do not change
2. Gravity of stellar bodies does not change
3. Light always travels in straight line
4. Speed of light is always same

2. With reference to the water on the planet Earth, consider the following statements:

1. The amount of water in the rivers and lakes is more than the amount of groundwater.
2. The amount of water in polar ice caps and glaciers is more than the amount of groundwater.

Which of the statements given above is/are correct?

1. 1 only
2. 2 only
3. Both 1 & 2
4. Neither 1 nor 2

3. 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?

1. 1, 2, 4 & 5
2. 3, 4 & 5
3. 1, 3 & 4
4. 1, 2, 3 & 5

4. Consider the following statements:

1. In the tropical zone, the western sections of the oceans are warmer than the eastern sections owing to the influence od trade winds.
2. In the temperate zone, westerlies make the eastern sections of oceans warmer than the western sections.

Which of the statements given above is/are correct?

1. 1 only
2. 2 only
3. Both 1 & 2
4. Neither 1 nor 2

5. In the case of which of the following biogeochemical cycles, the weathering of rocks is the main source of release of nutrients to enter the cycle?

1. Carbon Cycle
2. Nitrogen Cycle
3. Phosphorus Cycle
4. Sulphur Cycle

6. 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

1. 1 & 4 only
2. 2 only
3. 2 & 3
4. 1, 3, & 4

7. The black cotton soil of India has been formed due to the weathering of

1. Brown forest soil
2. Fissure volcanic rock
3. Granite and schist
4. Shale and Limestone

8. With reference to the Indus River System, of the following four rivers, three of them pour into one of the which joins direct. Among the following, which one is such river that joins the Indus direct?

1. Chenab
2. Jhelum
3. Ravi
4. Sutlej

9. With reference to India, Didwana, Kuchaman, Sargol anf khatu are the names of

1. Glaciers
2. Mangrove areas
3. Ramsar sites
4. Saline lakes

10. Condier the following Rivers:

1. Brahmani
2. Nagavali
3. Subarnarekha
4. Vamsadhara

Which of the above rise from the Eastern Ghats?

1. 1 and 2
2. 2 and 4
3. 3 and 4
4. 1 and 3

11. How is permaculture farming is different from conventional farming?

1. Permaculture farming discourages monocultural practices but in conventional chemical farming, monoculture practices are predominant.
2. Conventional chemical farming can cause increase in soil salinity but the occurence of such phenomenon is not observed in permaculture farming.
3. Conventional chemical farming is easily possible in such regions.
4. Practice of mulching is very important in permaculture farming but not necessarily so in conventional chemical farming.

Select the correct answer using the code given below.

1. 1 and 3
2. 1, 2 and 4
3. 4 only
4. 2 and 3

12. With reference to ‘palm oil’, consider the following statements:

1. The palm oil tree is native to Southeast Asia.
2. The palm oil is a raw material for some industries producing lipstick and perfumes.
3. The palm oil can be used to produce biodiesel.

Which of the statements given above are correct?

1. 1 and 2 only
2. 2 and 3 only
3. 1 and 3 only
4. 1, 2 and 3

13. Among the following, which one is the least water-effecient crop?

1. Sugarcane
2. Sunflower
3. Pearl millet
4. Red gram