ZacharyKhammixay
Answered

Welcome to Westonci.ca, your one-stop destination for finding answers to all your questions. Join our expert community now! Get immediate and reliable solutions to your questions from a knowledgeable community of professionals on our platform. Get precise and detailed answers to your questions from a knowledgeable community of experts on our Q&A platform.

What gas was present in earth's earliest atmosphere and used by cyanobacteria during photosynthesis?

A.
oxygen

B.
carbon dioxide

C.
nitrogen

D.
methane

Sagot :

These microbes conduct photosynthesis: using sunshine, water and carbon dioxide to produce carbohydrates and, yes, oxygen. In fact, all the plants on Earth incorporate symbiotic cyanobacteria (aka chloroplasts) to do their photosynthesis for them down to this day. so i believe  it is carbon dioxide.
We hope this information was helpful. Feel free to return anytime for more answers to your questions and concerns. Thank you for your visit. We're committed to providing you with the best information available. Return anytime for more. Get the answers you need at Westonci.ca. Stay informed by returning for our latest expert advice.