Question
Consider the following statements- Assertion (A)
The loss of forest cover in India has been directly related to India's demographic transition. Reason (R): There is usually a negative relationship between forest area and population growth. Select the correct answer from the codes given below-Solution
The loss of forest cover in India has been directly related to India's demographic transition, as the pressure on forest cover increases due to population growth. Forest areas are cut down due to agriculture, housing, urbanization, industry etc. There is often a negative relationship between forest area and population growth. In general, forest areas are negatively affected with population growth in developing countries, while this is not the case in developed countries. Due to environmental awareness and sensitivity towards forest areas, an increase in forest areas is often seen in developed countries. However, population growth in most of the countries adversely affects the forest area.
Ratio of length to width of a rectangular field is 4:3. If the perimeter of the field is 140 metres, then find the area (in m2) of the field.
An edge of a variable cube is increasing at the rate of 2 cm/s. How fast is the volume of the cube increasing when the edge is 12 cm long?
The average weight of a group of five persons, A, B, C, D, and E is 78 kg. If another person K joins the group then the average weight of the group is d...
What is the difference between (in m2) the area of a circular field of radius 35 metres and area of a rectangular piece of land having its di...
The length of the rectangle is triple its breadth. If the perimeter of the rectangle is 40 m, then find the area (in m2) of the rectangle.
- Determine which solid has a greater volume.
I) A cuboid having dimensions 7 cm, 10 cm, and 6 cm
II) A cube with each edge measuring 9 cm The dimensions of a cuboidal box are in the ratio 3:2:1. If the total volume of the box is 546.75 cm³, determine its lateral surface area.
The volume of a solid cube is 729 m3. If whole cube is to be painted at a rate of Rs. 8 per m2, then what will be the cost of pain...
If (x² + 1/x2) = 4, which of the options below is a possible value of x² - 1/x2 ?
If the altitude of an equilateral triangle is 9 cm, then find out its area?