Ask question

Ask question

All categories

3 years ago

6

The first organisms on Earth were able to transform the carbon dioxide in the air into what essential element needed for modern

life?
A. Hydrogen

B. Helium

C. Nitrogen

D. Oxygen

2 answers:

SCORPION-xisa [38]3 years ago

8 0

D.) Oxygen, most mammals need good ol' Oxygen in order to turn glucose into energy.

Len [333]3 years ago

4 0

D. Oxygen
We wouldn't be here without it

You might be interested in

7. The natural differences between individuals of a species are referred to as

Yuki888 [10]

Answer: Natural variation.

3 0

3 years ago

Which has more mass a mid-sized car or bicycle?

marta [7]

A car
-----------------------

5 0

3 years ago

Read 2 more answers

One function of gel electrophoresis is to

KonstantinChe [14]

The answer is : A ) separate DNA fragments

6 0

2 years ago

What does the phase of the moon seen from Earth depend on?

Degger [83]

We see the moon because the sun's light reflects off it. So the phases change depending on how much the sun reflects of it. The moon circles around the Earth so at certain times there will be a full moon and at certain times a new moon and everything in between.

7 0

2 years ago

A student writes two statements about the importance of soil.

Gnoma [55]

I'm not sure but it might be C

7 0

2 years ago