Question one, single option (choice a correct answer) of the water conservation competition. A. Upgrading of b. Mining of c. Storage of d. Consumption of 2. The freshwater bodies prevalent on land are surface water, groundwater and () surface water. A. Precipitation b. C. Soil water d. Mineral water 3. Our annual average water resources are () trillion cubic metres, the sixth highest in the world. But our country is a country with severe water shortages, with a per capita water volume of 2231 cubic metres, only one third of the world's per capita level. The distribution of water resources in the country is extremely uneven, with () per cent of the country's water resources distributed among the yangtze and the areas south of it. North of the river is only a percentage of the country. A. 81, 19b. 51, 49c. 91, 9d. 70,305. Indicators showing the nature of natural water physics are, inter alia, temperature, smell and taste, colour, turbidity, suspended substances, electrical conductivity, (). At its forty-seventh session, in 1993, the general assembly of the united nations designated world water day. We have designated () china water week every year. A, 22 march, 22-28 april, 22-28 april, 22-28 may, 22-28 may, d, 22-28 july, 7. The water body consists of three main components: water, aquatic organisms and () water. The main uses of water, which include domestic use and the production of water () of the suspended b. Dissolved oxygen c. Floating substrate d. B. Water for irrigation b. Eco-environmental c. Water for mining d. Water for shipping 9. Current water quality standards (), water pollutant release standards, methodological criteria iii. National, ii
