Given below are two statements, in which one is labelled as Assertion (A) and the other as Reason (R) - Assertion (A) : The colour of Red Soil is due to the wide diffusion of iron rather than to a high proportion of it. Reason (R): They are generally poor in nitrogen, phosphorous and humus. Select the correct answer using the code given below-

Given below are two statements, in which one is labelled as Assertion (A) and the other as Reason (R): Assertion (A): Saline soils in India are not appropriate for cultivation of crops. Reason (R): S…

Given below are two statements, one is labelled as Assertion (A) and the other as Reason (R): Assertion (A) : Red soil denotes the second largest soil group of India. Reason (R) : Red soil surrounds…

Which of the following statements is correct about laterite soil? (1) This soil is developed in areas with high temperature and heavy rainfall. (2) It is poor in iron oxide and aluminium. Select the…

Which of the following statements with reference to saline soil in India is/are correct? 1. They are rich in nitrogen. 2. They occur in arid and semi-arid regions, and in waterlogged and swampy areas…

Which of the following statements with reference to Humus is/are correct ? 1. It is a dark coloured amorphous substance. 2. Being colloidal in nature, it serves as a reservoir of nutrients. Select th…