151: What can be the impact of excessive / inappropriate use of nitrogenous fertilizers in agriculture?
1. Proliferation of nitrogen-fixing microorganisms in soil can occur.
2. Increase in the acidity of soil can take place.
3. Leaching of nitrate to the ground-water can occur.
Select the correct answer using the code given below.
(a) 1 and 3 only
(b) 2 only
(c) 2 and 3 only
(d) 1, 2 and 3
152: Monazite is an ore of
(a) zirconium
(b) thorium
(c) titanium
(d) iron
153: Consider the following statements regarding blood pressure :
1. It is the pressure exerted by the blood on the walls of any vessel
2. It decreases in the arteries as the distance from the heart increases
3. It is lower in the capillaries than in the arteries
4. It is usually lower in women than in men.
Of these statements
(a) 1 and 4 are correct
(b) 2, 3 and 4 are correct
(c) 1, 2 and 3 are correct
(d) 1, 2, 3 and 4 are correct
154: In which State is the Guru Shikhar Peak located ?
(a) Maharashtra
(b) Rajasthan
(c) Madhya Pradesh
(d) Gujarat
155: Which one of the following National Parks lies completely in the temperate alpine zone?
(a) Manas National Park
(b) Namdapha National Park
(c) Neora Valley National Park
(d) Valley of Flowers National Park