Question

what is the main contributor to global warming?
a. rise in natural geothermal activity
b. increase in oceanic plant life
c. increased soil minerals and nutrients
d. burning of fossil fuels and coal
how does carbon dioxide impact the atmosphere?
a. it absorbs more sunlight than other gases
b. it increases the number of tropical storms
c. it traps heat, leading to temperature rise
d. it reduces the movement of air currents

Explanation:

First Question (What is the main contributor to global warming?)

• Option a: Natural geothermal activity is not the main contributor to modern global warming as its impact is minimal compared to human activities.
• Option b: Increase in oceanic plant life would likely absorb more CO₂, reducing warming, not causing it.
• Option c: Increased soil minerals/nutrients don't directly contribute to global warming on a large scale.
• Option d: Burning fossil fuels and coal releases large amounts of greenhouse gases (like CO₂), which is the primary human - caused driver of global warming.

• Option a: CO₂ doesn't absorb more sunlight than other gases; it traps infrared (heat) radiation.
• Option b: CO₂ doesn't directly increase the number of tropical storms; factors like sea surface temperature and wind patterns are more relevant.
• Option c: CO₂ is a greenhouse gas that traps heat in the atmosphere, leading to an increase in global temperatures (the greenhouse effect).
• Option d: CO₂ doesn't reduce air current movement; air currents are driven by temperature and pressure differences.

Answer:

d. Burning of fossil fuels and coal

Second Question (How does carbon dioxide impact the atmosphere?)