The greenhouse effect is
A) due to increased sunlight in recent years.
B) caused by increased plant life and photosynthesis.
C) a natural phenomenon due to absorption of sunlight and re-radiating of the heat.
D) a manmade hazard due to decreased levels of carbon dioxide and ozone in the atmosphere in recent years.
E) not affected by human activities.
Correct Answer:
Verified
Q47: In the carbon cycle, carbon is returned
Q48: Approximately what percentage of the energy in
Q58: When deep wells drain aquifers,it is called
A)transpiration.
B)negative
Q60: How is a carnivore like a herbivore?
A)Both
Q61: Which of the following statements is false
Q62: The conversion of nitrate to nitrogen gas
Q64: Which of the following is NOT true
Q65: Which of the following is NOT a
Q67: Concerning the nitrogen cycle,which of these is
Q67: Which biogeochemical cycle is directly associated with
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents