Which of the following statements with reference to soil forming processes is/are correct ?

1. Translocation, enrichment, removal and transformation are different classes of soil forming processes

2. In translocation, fine particles are transported downward by eluviation and accumulate in lower horizons by illuviation

Select the answer using the code given below : 

Consider the following statements with reference to structure of the Earth’s atmosphere :

1. Thickness of the troposphere is greatest at the equator

2. The air temperature of the tropopause is highest above the poles

3. The temperature in troposphere decreases at the rate of 1°F for every 165 m of height

Which of the statements given above is/are correct ? 

Which of the following are the factors that cause variation in the amount of insolation on the Earth ? 

1. Rotation of the earth on its axis 

2. Length of the day 

3. Distribution of land and water on the earth 

Select the answer using the code given below : 

Consider the following conditions favourable for the formation and intensification of Tropical Storms : 

1. Presence of the Coriolis force 

2. Upper divergence above the sea level system 

3. High variations in the vertical wind speed 

Which of the conditions given above is/are correct ?