knita703 knita703

06-12-2020
Biology

contestada

why free oxygen was not found in primitive atmosphere?

Respuesta :

nvogelgesang26 nvogelgesang26

06-12-2020

Answer:There was no oxygen in the early air until basic life forms developed the ability to complete photosynthesis. During this cycle, daylight and carbon dioxide are utilized to make energy, delivering oxygen as a result.

Explanation:

Answer Link

Otras preguntas

ANSWER THIS WORD PROMBLEM PLZZ: Trevor bakes 8 batches of biscuits,with 14 biscuits each batch. He sets aside 4 biscuits from each batch for a bake sale and

What is 2x-y=-1 3x-2y=1

why does most chemical weathering only happen on the outer surface rock?explain.

Carl has three lengths of cable, 5/6 yard long, 1/4 yard long, and 2/3 yard long. after Carl has used 1 yard of cable, how much cable will he have left?

Energy for active transport comes from a cells?

How would you work out 14.4 divided by 90

central subs made 27 sandwiches using 12 pounds of turkey. how much turkey was used per sandwich?

why doesn't cellular respiration take place in just one step

write the percent as a fraction or mixed number in simplest form.

what type of government is it where the citizens hold the political power?