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UNO [17]
4 years ago
11

The rock record indicates that photosynthesis began on Earth about 3.5 million years ago.

Chemistry
2 answers:
Oksana_A [137]4 years ago
8 0

I put true into the answer and it was wrong so it is actually FALSE.

<u>The answer above is incorrect.</u>

riadik2000 [5.3K]4 years ago
7 0

Answer;

The above statement is false

Explanation;

Photosynthesis is the biological conversion of light or electromagnetic energy from the Sun into chemical energy. It occurs in green plants, algae, and some types of bacteria, and requires a series of biochemical reactions.

In photosynthesis, carbon dioxide and water react with one another in the presence of light and a chemical known as chlorophyll to produce a simple carbohydrate and oxygen.

Fossils of what are thought to be filamentous photosynthetic organisms have been dated at 3.4 billion years old. Geological evidence suggests that oxygenic photosynthesis, such as that in cyanobacteria, became important during the Paleoproterozoic era around 2 billion years ago.

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(a) The speed of light in the unknown substance is determined 1.82 x 10⁸ m/s.

(b) The light will bend away from the normal since speed of light in air is not equal to speed of light in the substance.

<h3>What is the speed of light?</h3>

The speed of light passing from air into the substance is calculated as follows;

refractive index = speed of light in air / speed of light in the substance

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Learn more about speed of light here: brainly.com/question/104425

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