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lions [1.4K]
3 years ago
13

1. Photosynthesis in the Earth's forests produces about half of the oxygen in the atmosphere. Photosynthesis in the Earth's ocea

ns produces the other half of the oxygen in the atmosphere. Why do you think so much photosynthesis occurs in the oceans?
Biology
2 answers:
Gennadij [26K]3 years ago
4 0

Answer:

Eventually, anoxygenic and oxygenic photosynthesis oxidized much of the Earth's crust and supplied sulphate to the ocean. Once Rubisco has captured the carbon dioxide, an electron donor is obtained by splitting water, releasing oxygen into the atmosphere.

Degger [83]3 years ago
4 0

Answer:

Because of sea plants and the use chemical lighting instead of solar light.

Explanation:

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What is the name for nonmetallic minerals that are valued for their beauty and rarity rather than their usefulness?
Vedmedyk [2.9K]

Answer;

-Gemstones

Gemstones are nonmetallic minerals that are valued for their beauty and rarity rather than their usefulness.

Explanation;

-Most gemstones form in the Earth's crust; the top layer of the Earth, with a depth of 3 to 25 miles. Only two gemstone varieties, diamond and peridot, form in the Earth's mantle, which represents 80% of the Earth's volume.

-A few gemstones form in the mantle, but all gems are mined in the crust. A precious gemstone has beauty, durability, and rarity, whereas a semiprecious gemstone has only one or two of these qualities.

7 0
3 years ago
What makes the sides and the the bridges of the double helix?
Lerok [7]
The sides of the double helix of the DNA are made up of sugar and phosphate backbone. The sugar is deoxyribose in case of DNA and ribose in case of RNA. The bridges are formed of the nitrogenous bases; adenine, guanine, thymine, and cytosine. RNA contains uracil n place of thymine.
4 0
3 years ago
How might an ecologist analyze how an increase in the population size of copperheads would affect the rest of the ecosystem?
luda_lava [24]
<span>by monitoring the populations of the other organisms in the ecosystem</span>
8 0
3 years ago
Read 2 more answers
What is the main source of carbon in an ecosystem?
sleet_krkn [62]

The main source of carbon dioxide in an ecosystem is the carbon dioxide gas present in the atmosphere. This carbon dioxide is used by the  plants and animals in different ways.

The plants use this carbon dioxide to perform the process of photosynthesis.This is carried out by the help of green pigment called chlorophyll that absorbs light from the sun, water from soil and carbon dioxide from atmosphere.

The carbon in animals comes when they eat these plants.

4 0
3 years ago
PLS HELP, HELP HHHHEEEELLLLPPPP
Degger [83]

Answer:

2-4 months for carrots and about 120 days for corn

Explanation:

8 0
2 years ago
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