更多"Water diuresis:"的相关试题:
[多项选择]recycling water
raising water prices
installing water saving devices
making more use of rain water
desalinating sea water
promoting water-saving technology
[简答题]Drinking water and water for domestic use often come from groundwater. In order to protect this water, local water authorities can apply to local administrative authorities to mark certain locations as water protection areas. The size of these areas is calculated in such a way that the quantity of groundwater taken from them corresponds to the actual rainfall going into them. In the water protection, areas certain uses of the land and activities on the land are banned or restricted. Water protection areas fall into three zones. Zone 3 is the outermost zone with a diameter of 4 kilometers around the groundwater well. Here no chemical works or the use of pesticides (杀虫剂) are allowed. Zone 2 is determined around the so-called 50-day line. It is assumed that after 50 days in the groundwater harmful bacteria will have died off. Here settlements and fertilizer storage are forbidden. Zone 1 marks the ten-meter boundary around the well. Here, any use of the land, as well as access by unauthori
[多项选择]Water Problems
Where’’s the water
Water. If you’’ve got it, you probably take it for granted. But a quick look at the globe — and a chat with the tiny group of researchers who are worrying about fresh water — both indicate that water shortages are very serious.
And they aren’’t necessarily in the future, either. Here’’s what we’’ve read in the past week or so.
... Mexico City (home to 20 million people) is sinking because the city sucks out underground water faster than the aquifer can be refilled.
... Florida wants to refill its overpumped aquifer (蓄水层) with untreated surface water, despite federal regulations to the contrary.
... Texas is moving toward private, for-profit water sales. The water will be "mined" from aquifers that are disappearing fast. No word on what the private suppliers, including corporate raider T. Boone Pickens, will do once the aquifers run dry.
... Aquifers around the world are being overtapped for irrigated agriculture, which f
[单项选择] Water Problems
Where’’s the water
Water. If you’’ve got it, you probably take it for granted. But a quick look at the globe — and a chat with the tiny group of researchers who are worrying about fresh water — both indicate that water shortages are very serious.
And they aren’’t necessarily in the future, either. Here’’s what we’’ve read in the past week or so.
... Mexico City (home to 20 million people) is sinking because the city sucks out underground water faster than the aquifer can be refilled.
... Florida wants to refill its overpumped aquifer (蓄水层) with untreated surface water, despite federal regulations to the contrary.
... Texas is moving toward private, for-profit water sales. The water will be "mined" from aquifers that are disappearing fast. No word on what the private suppliers, including corporate raider T. Boone Pickens, will do once the aquifers run dry.
... Aquifers around the world are being overtapped for i
A. Y
B. N
C. NG
[单项选择] Water-the Issue of This Century
The world is running short of fresh water. Populations are growing bigger and Thirstier(渴的), with the result that freshwater is becoming increasingly scarce (缺乏). Half the world’s wetlands have disappeared during the last century, while estimates suggest that water use will rise by 50% in the next 30 years.
The World Bank report estimates that as much as half of the world’s population, concentrated in Africa, the Middle East and south Asia, will face ’severe water shortages’ by 2025. Local water conflicts and the loss of freshwater ecosystems appear large in some regions.
A similar picture emerges from the globe’s salt water regions. Three-quarters of the world’s people may live within 100km of the sea in 2025, putting even more pressure on stretched coastal ecosystems. Two thirds of fisheries (渔业) are exploited at or beyond their sustainable limits, and half the world’s coral reefs (珊瑚礁) may perish in 1
A. Right
B. Wrong
C. Not mentioned
[填空题]Water filtered out of Ceramic Water Purifier is completely safe for drink.
[单项选择]
Water, water everywhere. It lasted almost two months, but in August it ended. It left 45 people dead and $10 billion worth of damage in nine states of USA. It was quite a big Mississippi flood ever recorded.
In St. Louis, Missouri, 9,000 people were forced to leave their homes while the city was in danger. St. Louis is just downriver from the points where the Missouri and Illinois Rivers flow into the Mississippi. All three rivers were flooding. But the city escaped the worst when levees (堤) broke upriver. A levee is built of fiver sand and clay (粘土).
Eleven miles of flood walls were built in the late 1960’s. The walls are 18 inches thick and 5 to 22 feet high. They were designed to protect against a 52-foot flood. In St. Louis, water almost reached the top of flood wails. It measured 49.4 feet.
The flood referred to in the passage （ ）.
A. was the heaviest one in the history
B. happened in Missouri and Illinois states
C. happened in less than twenty percent of the states of USA
D. was recorded several times
