251: Assertion (A):
The amount of moisture in the atmosphere is related to latitude.
Reason (R):
The capacity to hold moisture in the form of water vapour is related to temperature.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is NOT the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
Explanation:
The amount of moisture in the atmosphere is related to latitude. Because, according to the change in latitudes, temperature also varies on the earth. Temperature directly influences the moisture holding capacity of the atmosphere.
252: Assertion (A):
Unlike temperate forests, the tropical rain forests, if cleared, can yield productive farm-land that can support intensive agriculture for several years even without chemical fertilizers.
Reason (R):
The primary productivity of the tropical rain forest is very high when compared to that of the temperate forests.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is NOT the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
Explanation:
A is wrong and R is correct.
In tropical rainforests because of the rainfall throughout the year, leaching of minerals occur. Due to high temperatures bacterial activity is enormous, there by humous cantent in the soil decreases. To raise crops in this region requires application of chemical fertilizers.
253: High tides at antipodes are caused due to:
(a) Gravitational pull of the moon and the sun
(b) Gravitational pull of the sun
(c) Centrifugal, centripetal and gravitational pull of the sun
(d) Centrifugal, centripetal and gravitational pull of the sun and the moon
254: Which one amongst the following has the largest livestock population in the world?
(a) USA
(b) India
(c) China
(d) Brazil
Explanation:
According to the Global Livestock Production and Health Atlas (GLiPHA) database of the Food and Agricultural Organization (FAO), China has the largest number of livestock units globally, followed by India. The 17th Livestock Census (2003) has placed the total livestock population at 485 millions in India. Australia, Pakistan, Indonesia, Bangladesh, Vietnam, and New Zealand are the other countries with large numbers of livestock units.
255: Consider the following statements:
Among the Indian States
1. Andhra Pradesh has the longest coastline.
2. Gujarat has the highest number of airports.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Explanation:
Gujarat has the longest coastline and also has the maximum airports among Indian States.