Register
Which of the following is the primary source of oxygen in the Earth's atmosphere? OA plants OB animals OC factories OD bacteria Reset Submit
65.8k views
20 votes
Which of the following is the primary source of oxygen in the Earth's atmosphere?

OA
plants
OB
animals
OC
factories
OD
bacteria
Reset
Submit

User Mithu
by
6.1k points

1 Answer

7 votes

Answer:

Oa

Step-by-step explanation:

bcz primary is a form of plants type so thats why its OA

User Semihcan Doken
by
6.1k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

6.4m questions

8.4m answers

Other Questions

I need biology help. We are taking one lesson today and we need to make a habitat demonstration. It needs to show one habitat, 5 animals in that habitat, 5 plants in that habitat, and 5 sun drawings in
there are 3 different ways for plates to interact with eachother list the 3 types of faults and what they do
7. dinoflangellates stores excess sugar as A. proteins B. fats C. starch D. none of the above 8. An amoeba moves by extensions of its cytoplasm, which is know as A. cilia B. flagella C. pseudopdia D. none
Which of the following is a group of therapsids
Which of the following statements is true? Tsunamis happen when backwash is stronger than swash. Mudflows are the slowest form of slope failure. Weathering is the movement of sediment from one location
Link Copied!