chasewickham5452 chasewickham5452

25-08-2022
Geography

contestada

which event was most directly responsible for increasing oxygen in earth’s atmosphere?

Respuesta :

temmycruise1234 temmycruise1234

25-08-2022

Answer:

The appearance of free oxygen in the Earth's atmosphere led to the Great Oxidation Event. This was triggered by cyanobacteria producing oxygen which developed into multicellular forms as early as 2.3 billion years ago.

Explanation:

Answer Link

Otras preguntas

Solve the equation for y. 4x - 5y = 9 A. y = -5/4x = -5/9 B. y = -4x = 9 C. y = 5/4x + 9/4 D. y = 4/5x - 9/5

9 times as much as 7 tenths

how many times does 15 go into 24

Matthew drove 8/16 of the way to Kentucky and Fred drove the other 1/2 distance of the distance who drove the most

Physical activity and exercise typically lead to __________. a. increased stress b. depression c. higher energy levels d. reduced quality of life

Which of the following sentences contains a simile? A. The wind blew the clouds across the blue sky. B. The clouds were white and puffy. C. The clouds in the sk

Which of the following explains the relationship between Internet use, GDP, and democratization?

In a right triangle, angle C measures 40. the hypotenuse of the triangle is 10 inches long. what is the approximate length of the side adjacent to angle C

4/10 to the lowest terms

which of the following organs is where most nutrients are absorbed