Question

how does the atmosphere help to make earth livable? check all that apply.
□ causes the seasons
□ contains oxygen
□ provides warmth
□ creates important nutrients
□ blocks harmful energy from the sun

Explanation:

• "causes the seasons": Seasons are caused by Earth's tilt, not the atmosphere. Eliminate.
• "contains oxygen": The atmosphere has oxygen, essential for aerobic life. Include.
• "provides warmth": The atmosphere (greenhouse effect) traps heat, warming Earth. Include.
• "creates important nutrients": Nutrients are from soil, organisms, etc., not the atmosphere. Eliminate.
• "blocks harmful energy from the Sun": The atmosphere (ozone, etc.) blocks UV and cosmic rays. Include.

Answer:

• contains oxygen
• provides warmth
• blocks harmful energy from the Sun