kweensara88 kweensara88

13-11-2020
Biology

contestada

Why wasnt Oxidation chemical weathering common 2 billion years ago

Respuesta :

xyz0105 xyz0105

13-11-2020

Answer:

Oxygen levels were a lot lower then

Explanation:

2 billion years ago was before the Great Oxidation Event. The first oxygen-producing cyanobacteria did not exist before then. Without oxygen, oxidation cannot be common.

Answer Link

Otras preguntas

what was one reason for the declaration of independence

3t + 7< 21 what expression will make this inequality true? a -t < 7 b- t > 7 c -t > 11.7 d- t< 11.7 e- t < 21

What problems does the swim coach have? Use details from the story to support your answer. the mystery taplon

Sabrina plans to apply for a loan that requires a down payment at the end of this year. What will help her reduce the total cost of the loan? A. reducing the

A L G E B R A how would you write this as an expression combine a number and 4?

The map above shows the earliest cultural hearths. A cultural hearth is the center of a major culture from which its ideas, customs, and traditions spread. Acco

what is the area of this figure. will mark brainlest

How do you solve a+4 when a=7

Oliva needs 5 buckets of water to wash her car.In one bucket,it holds 4 liters.How many liters of water will she use to wash her car

why does mkushi receive more rainfall than luangwa valley