Question

1. when released in large quantities into the atmosphere, what gas do some scientists believe may be responsible for the greenhouse effect?

a. oxygen
b. carbon dioxide
c. nitrogen
d. sulfur dioxide

Explanation:

Oxygen (\(O_2\)) is essential for respiration and not a major greenhouse gas. Nitrogen (\(N_2\)) makes up most of the atmosphere and is not a significant greenhouse gas. Sulfur dioxide (\(SO_2\)) is a pollutant but mainly causes acid rain, not the greenhouse effect. Carbon dioxide (\(CO_2\)) is a well - known greenhouse gas. When released in large quantities (e.g., from burning fossil fuels), it traps heat in the atmosphere, contributing to the greenhouse effect.

Answer:

B. carbon dioxide