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3 years ago

Oxygen levels first rose in the atmosphere because of _____.

Physics

2 answers:

tigry1 [53]3 years ago

5 0

The answer to your question is going to be option "D."

Oxygen levels first rose in the atmosphere because of (the last option, or "D') cyanobacteria. Cyanobacteria is a type of bacteria that can create toxins that are very dangerous to both humans and animals.

I hope this helps! :)

Umnica [9.8K]3 years ago

3 0

Hey there!

Your answer = D. Cyanobacteria

They gain their energy through the photosynthesis.

Hope this helped!

You might be interested in

The visible spectrum of the electromagnetic spectrum is made up of which of the following?

svetlana [45]

The visible spectrum of the electromagnetic spectrum is made up of "red, orange, yellow, green, blue, and violet light"

In short, Your Answer would be Option C

Hope this helps!

5 0

3 years ago

Two pro baseball players of the same height are testing how far they can throw. One players throws the ball at a 40.0 degrees an

Viktor [21]

Answer:

The distance traveled by the ball before it lands in the other player's glove is 130.96 m.

Explanation:

Given;

angle of projection of the ball, θ = 40⁰

initial velocity of the ball, u = 36.1 m/s

The distance traveled by the ball before it lands in the other player's glove is the range of the projectile, calculated as follows;

$R = \frac{u^2 sin(2\theta)}{g} \\\\R= \frac{36.1^2 \times sin(2\times 40)}{9.8} \\\\R = \frac{36.1^2 \times sin(80)}{9.8} \\\\R = 130.96 \ m$

Therefore, the distance traveled by the ball before it lands in the other player's glove is 130.96 m.

6 0

3 years ago

All of the following are part of the electromagnetic spectrum but

Lera25 [3.4K]

D)sound waves the electromagnetic spectrum has to do with colors

3 0

3 years ago

Read 2 more answers

A glass tube is filled with hydrogen gas. An electric current is passed through the tube, and the tube begins to glow a pinkish

IRISSAK [1]

The first description is the correct one.

6 0

3 years ago

Read 2 more answers

A person slaps her leg with her hand, which results in her hand coming to rest in a time interval of 2.25 ms2.25 ms from an init

Aliun [14]

Answer:

The force is 3305.6 N.

Explanation:

Final velocity, v = 0

time, t = 2.25 ms

initial velocity, u = 4.25 m/s

mass, m = 1.75 kg

Let the acceleration is a.

Use first equation of motion.

v = u + a t

0 = 4.25 + a x 0.00225

a = - 1888.9 m/s^2

The force is

F = ma

F = 1.75 x 1888.9

F = 3305.6 N

4 0

3 years ago