Despite the fact that there are millions of freshwater lakes and many kilometres of rivers and streams on the planet, these water sources represent an almost insignificant amount of freshwater. However, they remain vitally important: A large amount of our drinking water comes from them. You can ...
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Most of this activity is unnoticed because these boundaries are under great depths of water. At these deep locations, any steam, ash, or gas produced is absorbed by the water column and does not reach the surface. Earthquake activity is the only signal to humans that many of these deep ...
Where fish are used to mobitor water quality, successive pictures are taken and compared. On no change between images, showing no movement, an alarm is raised. USE/ADVANTAGE - The fish are used to monitor the biological vondition of the water as they rapidly react to contamination and any ...
Their many uses include taking pictures from the sky, observing (观察) wild animals and delivering packages. Now these small flying robots are leading a new farming revolution (革命) according to the Food and Agriculture Organization of the United Nations. When equipped (装备) with cameras and ...
Furosemide (Lasix), which is a type of diuretic (water pill) A nonsteroidal anti-inflammatory drug (NSAID), such as ibuprofen, naproxen, indomethacin, and others, which is used for pain, swelling, and fever Aspirin, which is in many prescription and OTC products, including those for pain,...
The mucus that covers fish has multiple functions. It protects the animals from specific dangers and, in some species, is food for the young fish. It may help us.
【题目】What can drones(无人机)do?Their uses include taking picturesfrom the sky, observing wild animalsand delivering packages. Whenequipped with cameras and otherdata-gathering devices, drones provide us with an eye in thesky. Here are a few of the farming-related jobs dronescan do.Looking...
Point the jet of water at the bottom of the fire and move it slowly higher.Remember that you should only use extinguishers for small fires. If there is any danger of the fire spreading to anything that can explode, you should not try to put the fire out yourself. Instead, leave the ...
The latin namePleurotus ostreatusmeans “sideways oyster”, referring to the oyster-like shape of the mushroom. There are a few closely related species that can be hard to distinguish from oysters. Thus it’s helpful to bring someone knowledgeable when searching for them in the woods. ...