How did water come into being on the earth? The explosion of the earth produced water vapor, which turned into water when the earth cooled down. Wateris the headspring of life.___made it possible for life to begin to develop・Plants encouraged the development ofearly shellfish and all ...
题目 We all know that water is the source of life on Earth.No plant,insect,animal(1) orhuman can survive without it.A new study from the National Institutes of Health highlights how important it is to our health.Researchers find that people(2) who/thatdrink a l...
Step 1. Fast readingHow life began on the earthPara.1 Para.2Para.3Para.4Para.5 A theory about how the universe was formedThe formation(形成)形成) of the earthThe importance of water for lifeThe development of plants and animalsThe arrival of huma 5、ns and their effects on the earth...
D.Earth's oceans formed from water vapor that was released during the radioactive decay of elements embedded in Earth's interior. E.Scientists once thought that heat from Earth's interior forced water vapor into the atmosphere where it condensed into liquid water that accumulated over time into ...
how much water are there on the earth then?Most of the water is in the oceans or locked away as ice.The largest volumes of fresh water are stored underground as groundwater,imagine there is only one barrel of water in the world,then there is only a spoon of it on the land,and the...
About 70 percent of our planet’s surface is covered with water, and it plays an important role in our daily lives. But how did water get on Earth in the first place?
on impact it would shatter and melt or even vaporize. Besides releasing a great deal of heat, the explosion would immediately set free any water trapped in the rock. If Earth formed from colliding embryos, it formed not cold but hot, and, assuming there was water trapped in the rock, it...
We consider the supply of water from the reservoir as the endowment, and the claims are the amounts required by the owners of the plots based on their past demands (when there was no drought). Now, due to scarcity, the available water is not enough to satisfy the agents’ claims. In ...
The flow of the mantle beneath Earth's crust causes plate tectonics, the movement of the large plates of rock on the planet's surface. Collisions and friction gave rise to mountains and volcanoes, which began to spew gases. When Earth first formed it had barely any atmosphere. Its atmosphere...
Sustaining a permanent environment in space requires things many of us take for granted here on Earth: fresh air, water, food, a comfortable (and habitable) climate — even waste removal and fire protection. First, let's talk air. We all need oxygen, so the ISS has several methods of pr...