Last seen: Dec 29, 2021
Groundwater depletion and ways for its replenishment: Groundwater depletion is defined as long-term water-level decline caused by sustained groundw...
Industrial wastes released into water contain toxic substances, such as arsenic, cadmium, lead, zinc, copper, mercury, and cyanides, besides some salt...
The natural aging process of lakes by nutrient enrichment of their water. In young lake water is cold and clear and supports only little life. With ti...
(a) – (ii) (b) – (i) (c) – (iii) (d) – (iv).
Global warming is a rise in the mean temperature of the lower atmosphere and the earth’s surface. Causes: increase in the quantity of radioactively...
Wastes generated at home include plastic bags, paper napkins, toiletries, kitchen wastes (such as peelings of vegetables and fruits, tea leaves), dome...
The domestic sewage contains everything that goes down the drain into the sewer of the house. The various constituents of domestic sewage are suspende...
Column I - Column II 1. In situ → D. On site conservation 2. Ex situ → E. Off site conservation 3. Khasi Hills → A. Meghalaya 4. Ar...
Immense diversity.
True, More than 1.5 million species have been recorded in the world.
True, World Summit on Sustainable Development was held in 2002 at Johannesburg.