Increases in the temperature of the earth due to the greenhouse effect over the last 50 years is least due to ________.
A) burning of oil by industry and utilities
B) flatulence by cows
C) addition of hot water to lakes by utilities
D) clearing land for farming
E) use of freons

Question

Quizplus · Accepted Answer

The least contribution to the increase in Earth's temperature due to the greenhouse effect over the last 50 years comes from the addition of hot water to lakes by utilities. This is because the primary contributors to the greenhouse effect are greenhouse gases like carbon dioxide and methane, which trap heat in the atmosphere. The addition of hot water to lakes is a localized thermal pollution issue and does not contribute significantly to the global greenhouse effect.

Increases in the Temperature of the Earth Due to the Greenhouse