The oxygen build-up in the atmosphere was caused by

Biology

1 answer:

Y_Kistochka [10]3 years ago

3 0

Answer:

Actually, The answer is tiny organisms known as cyanobacteria, or blue-green algae. These microbes conduct photosynthesis: using sunshine, water and carbon dioxide to produce carbohydrates and, yes, oxygen. "What it looks like is that oxygen was first produced somewhere around 2.7 billion to 2.8 billon years ago. Harmful cyanobacteria blooms may affect people, animals, or the environment by: y blocking the sunlight that other organisms need to live. Cyanobacteria blooms can steal the oxygen and nutrients other organisms need to live. y making toxins, called cyanotoxins.

Explanation:

You might be interested in

Organisms that gain energy by eating food are called:

kogti [31]

Answer:

Heterotrophs or consumers

Explanation:

This are organisms that cannot produce their own food. They rely on autotrophs ( plants or producers ) for food. Most of the times these are normally animals.

HOPE THIS HELPED

8 0

2 years ago

Non examples of vacuole

monitta

A cabinet or a store they both store water,food,salts,and proteins

6 0

2 years ago

What does it mean if someone is malnourished?

Goshia [24]

To be malnourished means to lack proper nutrients that keep you healthy say a person likes fast food and eats only fries for a long period of time they will lack nutrients and get sick which is the bodies way of saying you need to eat a variety of food.

6 0

2 years ago

In pine trees Male pine cones contain:

maks197457 [2]

Answer:

they male contain 2 seeds

6 0

2 years ago

PLEASE HELP I WILL MARK BRAINLEST

Reil [10]

The answer is c because the earth not only is tilted it orbits

5 0

3 years ago