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fgiga [73]
2 years ago
9

What is coal composed of?

Biology
1 answer:
ohaa [14]2 years ago
5 0

Answer:

Coal is a sedimentary deposit composed predominantly of carbon that is readily combustible. Coal is black or brownish-black, and has a composition that (including inherent moisture) consists of more than 50 percent by weight and more than 70 percent by volume of carbonaceous material.

Explanation:

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Why are photosynthesis and cellular respiration viewed as complementary processes?
asambeis [7]

Cellular respiration and photosynthesis are complementary processes because they use each others' products and reactants.


Photosynthesis' products are cell respiration's reactants; likewise, cell respiration's products are photosynthesis' reactants.


Also, photosynthesis is known to take away carbon dioxide from the air and put in oxygen while cellular respiration does the opposite, putting in carbon dioxide while taking away oxygen.

6 0
3 years ago
Which terms describe the different movements of Earth? Select three options.
AlexFokin [52]

Answer:

rotation

revolution

lunar cycle

Explanation:

hope that helps if so please mark as brainliest

4 0
3 years ago
Read 2 more answers
What assessment finding should a nurse expect to note in a child with chronic hypoxia?
AleksandrR [38]
Chronic tissue hypoxia in children can be observed in patients who have history of tetralogy of Fallot, which is a condition of congenital heart disease that has abnormalities occurring simultaneously.  Skin color changes, tachycardia, rapid breathing, wheezing, confusion, sweating, and coughing are also seen commonly in chronic hypoxia patients and this should be a hint in assessing the condition of the patient.
8 0
3 years ago
(This is earth science but there is no option for that)Which of the following would be most impacted by a decrease in the use of
JulijaS [17]

<u>Answer:</u>

<em>Decrease in burning of fossil fuels will affect carbon cycle the most. </em>

<u>Explanation:</u>

Carbon compounds circulate within the biosphere as part of carbon cycle.  In terrestrial ecosystems Plants acquire carbon dioxide through photosynthesis and in aquatic ecosystems plankton absorb carbon dioxide.  

Dead plants bodies deposited underground for a large number of years get converted to fossil fuels and the burning of these fossil fuels releases carbon dioxide into the atmosphere.

Carbon dioxide is also released into the atmosphere through processes like respiration and decomposition of dead organic matter. If burning of fossil fuels is decreased it will be the carbon cycle which will be affected the most.

8 0
3 years ago
In most sexually reproducing organisms, the diploid phase of the life cycle begins at
valkas [14]

The diploid phase of the life cycle begins with the formation of the zygote.

Meiosis is referred to the type of cell division which occurs in the production

of male and female sex cells. This also occurs during sexual reproduction.

Parent cells provide male and sex cells such as sperm and egg which

contains DNA. They then fuse together to form a zygote which is the diploid

phase as a result of the fusion of two haploid cells. The zygote then

continues to undergo some meiotic processes which reduces it to back to a

haploid cell and consequent growth to form a fetus.

Read more on brainly.com/question/16249478

4 0
3 years ago
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