What allowed the earth’s atmosphere to increase in oxygen concentration?

Biology

1 answer:

Sophie [7]3 years ago

3 0

Answer:The answer is tiny organisms known as cyanobacteria, or blue-green algae.

Explanation:

These microbes conduct photosynthesis: using sunshine, water and carbon dioxide to produce carbohydrates and oxygen increase. Additionally, some sources you could use that I used to answer this question was

https://www.scientificamerican.com/article/origin-of-oxygen-in-atmosphere/

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Which of the following methods is the most desirable way to reduce overall hazardous waste?

morpeh [17]

Answer:

D) the incineration of all hazardous waste

Explanation:

The method of incineration is the most desirable way to reduce overall hazardous waste because which can detoxify and destroy certain organic wastes.

Some of the different types of incinerators are the multiple-hearth furnace, fluidized-bed incinerator, rotary kiln, and liquid-injection incinerator.

Hence, the correct answer is "D".

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3 years ago

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Which of these is mismatched? e: A. roundworm - complete digestive tract B. cnidarian - nematocyst C. sponge - collar cell D. pl

STALIN [3.7K]

Answer:

Option E

Explanation:

The flukes also called flatworms or platyhelminthes have a false body cavity or pseudocoelum which exist as patches between the body wall and the intestine, they do not originated mainly from the mesoderm like the true body cavity.

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4 years ago

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Put these steps in the order in which they occur in light-dependent reactions. Electrons are transferred from photosystem II to

erma4kov [3.2K]

Answer:

The correct order of the steps of light dependent reaction is described below

Explanation:

Step 1 light energy is absorbed and transferred to the reaction center

Step 2 water molecule is splited

Step 3 Electrons are transferred from photosystem 2 to photosystem 1

Step 4 ATP is synthesized from ADP and inorganic phosphate.