Questions and Answers
What is the primary gas responsible for respiration in most organisms?
Oxygen
Which gas is primarily used by plants, algae, and cyanobacteria for photosynthesis?
Carbon dioxide
What is the most abundant gas in the Earth's atmosphere?
Nitrogen
Which gas is responsible for minimizing the harmful effects of sunlight and radiation in the atmosphere?
Signup and view all the answers
What is the outer region of a star, which includes the layers above the opaque photosphere, called?
Signup and view all the answers
