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Irina-Kira [14]
3 years ago
7

In the morning, Rafael notices that the Sun appears on one side of the sky. In the evening, he notices that the Sun appears to b

e on the other side of the sky. However, in class, Rafael learned that the Sun does not actually move across the sky from one side to another. Why does it appear that the Sun starts the day on one side of the sky and ends the day on the other? A. The Earth spins. B. The Sun is not real. C. The Sun spins. D. The Earth has two Suns.
Biology
1 answer:
adell [148]3 years ago
4 0
A) The earth spins 

The Earth is constantly spinning, or "rotating", which causes day and night
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Explanation:

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Andrej [43]

Clean coal technology refers to a gathering of technologies being created in order to reduce the environmental influence of coal energy production and to mitigate global climate change. There are three distinct technological procedures accessible for the aim of capturing carbon as demanded by the clean coal concept:  

1. Pre-combustion capture: This includes gasification of a feedstock like coal to generate gas that may be shifted to develop a mixture of carbon dioxide and hydrogen gas, from which the carbon dioxide can be effectively separated and captured, transported, and eventually sequestered.  

2. Post-combustion capture: This is the capturing of carbon dioxide from the exhaust gases of combustion methods.  

3. Oxy-fuel combustion: The fossil fuels like coal are combusted in a mixture of oxygen and recirculated flue gas, rather than in air that hugely withdraws nitrogen from the flue gas allowing capturing of low-cost and efficient carbon dioxide.  

An initial example of a coal-based plant utilizing carbon capturing technology is a Swedish company Vattenfall's Schwarze Pumpe power station situated in Germany.  


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3 years ago
Compare and contrast dehydration synthesis(condesation) and hydrolysis.
dexar [7]

Answer:

This

Explanation:

In dehydration synthesis reactions, a water molecule is formed as a result of generating a covalent bond between two monomeric components in a larger polymer. In hydrolysis reactions, a water molecule is consumed as a result of breaking the covalent bond holding together two components of a polymer.Aug 14, 2020

3 0
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Vilka [71]
Science can be used to address societal issues and to inform policies.


Hope this was helpful :)
8 0
3 years ago
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lutik1710 [3]

Answer:

hope it helps..

Explanation:

During the third trimester, the fetus continues to grow in size and weight. The lungs are still maturing. The fetus starts to position itself head-down. By the end of the third trimester, the fetus is about 19 to 21 inches long and weighs about 6 to 9 pounds.

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