AA desert refers to a barren section of land, mainly in arid and semi-arid areas, where there is almost no precipitation, and the environment is hostile for any creature to inhabit. Deserts have been classified in a number of ways, generally combining total precipitation, how many days the ...
But some people don’t really care about this . They waste a lot of water pour dirty water and throw rubbish into rivers or lakes. As a result many rivers and lakes are polluted and there is less and less water for us to drink. So we must do something to protect the water resource....
aThere is so much water in the Atlantic that it is hard to imagine how much there is. But suppose no more rain fell into it and no more water was brought to it by rivers. It would take the ocean about 4,000 years to dry up. On the average the water is a little more than two...
They are also important in countering the effects of extreme weather conditions, storing and absorbing the water flow during floods and storms. In this edition of RAZOR, CGTN's Guy Henderson heads to Devon to see beavers flourishing in English rivers. Derek Gow, a key figure in rew...
Birds are one of the world's smartest creatures and choose the most suitable place to perch. Places near rivers, seas or wetlands where there is abundant food to forage are good choices for them. Zhongshan City in south China's Guangdong Province sits in the south of ...
water qualityAwareness of the presence of high concentrations of pesticides in Swiss rivers has increased in the last decade. Since 2017, the Federal Department of the Environment, Transport, Energy and Communications is planning to introduce new regulatory acceptable concentrations for surface water of...
First, the agnostids may have been free-swimming predators that hunted smaller animals. It is known that other types of primitive arthropods were strong swimmers and active predators, so it is reasonable that the agnostids may have lived that way as well. And while the agnostids were small, so...
As we know, water is very important to man, we can’t live without water. The amount of water which is suitable to drink is less and less. But some people don’t care about it. They waste a lot of water in their daily life. Even worse, they pour dirty water into rivers. They ...
1.Water runs downhill from mountaintops to streams to rivers to oceans.But downhill running isn't the only way that water moves.A new study measures how water travels from country to country for human consumption.This flow isn't the type we usually think about.These scientists looked at the...
aProvides information on how you can get involved including ways to protect human health and the environment by raising awareness about potential threats to your drinking water, local rivers, lakes, streams, wetlands, the fish and shellfish you eat, and aquatic ecosystems. 提供信息关于怎样您能涉及...