Which of the following constituents would you add to your garden to increase the fertility to the soil?

1. Silica
2. Humus
3. Clay
4. Sand

You had gone to a village near Patna. When you enquired about the type of soil you were told, it was ex situ. Which of the following is it?

1. Alluvial soil
2. Laterite soil
3. Red soil
4. Black soil.

Which of the following soils vary from place to place on the basis of the parental rocks and climatic conditions?

1. Black soil
2. Laterite soil
3. Alluvial soil
4. Red soil.

Assertion (A): Transported soils do not have a well defined soil profile.

Reason (R): They constitute soils that are transported by various agents of erosion.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R does not explain A.
3. A is true but R is false.
4. A is false but R is true.