Question
Consider the following statements regarding tillage in
India: 1. Tillage is beneficial to reduce runoff of water and reduce soil erosion. 2. Zero Tillage degrades organic matter content due to the high mineralisation of Soil. Which of the statements given above is/are correct?Solution
Tillage is the mechanical manipulation of soil with tools and implements for obtaining conditions ideal for seed germination, seedling establishment and growth of crops. The advantages of Tillage are as follows: A greater volume of soil may be obtained for the cultivation of crops. Excess water may percolate downward to recharge the permanent water table. Reduce runoff and soil erosion Roots of crop plants can penetrate deeper to extract Moisture from the water table.
Geography books are always together.
- Eight books out of which 4 are part of a series and the remaining are standalone books are to be arranged on a shelf. Find the number of arrangements in wh...
Form all possible words from ASSESSMENT with the condition that the vowels are always together. How many are there?
- There are 3 identical toys and 4 identical books. How many distinct arrangements are possible on a shelf such that all three toys do not appear together?
In how many different ways can the letters of the word ‘PADDLED’ be arranged?
Find total number of ways in which the word “AGGRESSION” can be arranged.
A team of 7 researchers is to be formed from 6 biologists and 4 chemists. Find the number of ways to form the team if it must include at least 5 biologi...
In a bag there are 4 red balls, 3 green balls, and 5 blue balls. If one ball is drawn at random from the bag, what is the probability of drawing a green...
How many straight lines can be formed from 9 points out of which 4 are colinear?
In how many different ways can 6 boys and 3 girls to be seated in a row such that all the boys seated together and all the girls seated together?
Relevant for Exams:
