Consider the following statements regarding soils :

1. Soils having a very high content of sodium and calcium and pH of more than 7.0 are alkaline soils.

2. Black cotton soil had developed on the Deccan basaltic lava under hot and humid conditions.

3. Laterite soils are characterised by a deep weathered layer from which silica has been leached.

Which of the statements given above is/are correct?

Consider the following characteristics of a grassland :

1. An extensive area of mid latitude grasslands are devoid of trees and shrubs.

2. The climate is characterised by hot summers, cold winters and relatively low rainfall occurring mainly in spring and summer.

3. In humid parts, grasses grow to a meter or more in height.

On the basis of the above characteristics, select the correct grassland from the options given below :

Which of the following statements regarding neap tides is/are correct?

1. It occurs every 14 – 15 days, which coincides with the first and third quarter of the Moon.

2. This tide has a small tidal range because the gravitational forces of the Moon and the Sun are in quadrature.

Select the answer using the code given below :

Which of the following statements regarding earthquakes is/are correct?

1. The point on the Earth’s surface directly above the focus is called the epicentre of the earthquake.

2. Earthquakes generate Primary and Secondary waves that radiate outward from the earthquake focus.

3. Deep-focus earthquakes are likely to cause more damage than shallow-focus earthquakes.

Select the answer using the code given below :