Convection is the circular motion of air circulating
When a gas changes into a liquid, it is called condensation. ... When a liquid changes into gas, it is called evaporation. Phase changes are usually caused by changes in temperature or pressure. As the states of matter change from solid to liquid to gas, respectively, their composition changes as well.
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Explanation:
All the stars we see in the night sky are in our own Milky Way Galaxy. Our galaxy is called the Milky Way because it appears as a milky band of light in the sky when you see it in a really dark area.
Miller collected several organic compounds, both simple (such as formaldehyde) and complex (such as hydrocarbons), commonly found in organisms.
Though his methodology is not undisputed, his results support the concept that abiotic synthesis of organic compounds could have been an early stage in the origin of life.
From the samples collected for chemical analysis, Miller identified a variety of organic molecules that are common in organisms. These included simple compounds, such as formaldehyde (CH2O) and hydrogen cyanide (HCN), and more complex molecules, such as amino acids and long chains of carbon and hydrogen known as hydrocarbons. Miller concluded that organic molecules, a first step in the origin of life, may have been synthesized abiotically on the early Earth.
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Answer:
A leaf needs carbon dioxide and water for photosynthesis. ... For carbon dioxide to enter, the stomata on the surface of the leaf must be open. As you have seen, transpiration draws water from the roots into the leaf mesophyll.
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