Question

16 161 a) 1/3 part b) 2/3 part 161 Which of the following is the primary source of water on land ? a) lakes b) Tanks c) Ponds d) Rain water 53. The process of water changing into water vapour is called. a) Condensation b) Evaporation c) Collection d) Run off X' is a process by which plants lose water. What is 'X' ? a) Evaporation b) Transpiration c) Condensation d) Translocation 55 Water is available on the surface of earth in the form of oceans. seas, rivers. ponds etc. Approximately how much of the carth is covered with water. la c) 1/2 part d) 1/4 part 56.​

Answer 1

Reservoirs. The largest water reservoir is the ocean, containing 97.3% of all water on Earth. This is of course salt water and is toxic unless specially treated to remove the salt. The next biggest reservoir are glaciers and polar ice containing just over 2% of the available water.