caitcait2002 caitcait2002

08-04-2018
Biology

contestada

Describe the source of free oxygen in the Earth’s early atmosphere

Respuesta :

lholland0052 lholland0052

11-04-2018

tree's give off oxygen for us to breath

Answer Link

Otras preguntas

Give me five different examples : persuading someone to do something

The following shape is based only on squares, semicircles, and quarter circles. Find the area of the shaded part.

2. What is your class or form?A. 1st Year (Form 1)B. 2nd Year (Form 2)C. 3rd Year (Form 3)

During summer vacation, Wesley read, on average, 20 pages per night. Now that he has returned to school, he is averaging 65% fewer. How many pages per night is

2x/9 +x/3 = 13/6, solve for x

Which of the following has a well described setting that creates an atmosphere? A. My favorite place in the world is my grandma’s house. Why? Because my grandma

At 10:05 a.m., there are 2 microscopic bacteria cells in the bottle. How many cells will be in the bottle at 10:15 a.m.? A. 2 B. 4 C. 8 D. 16

A teacher collected some beetles from a rotting log and placed them in a container of dry oatmeal in her classroom. She kept the box covered with a light cloth

In the first quadrant you start at 5, 6 and move 4 units down. What point will you end up at? Thanks for your help! - Someone who's better at English than math

Which effects are factors in long-term climate change? Check all that apply.