« previous next »

Author Question: Over the last century and a half, the main source of increased atmospheric carbon dioxide has been ... (Read 34 times)

Capo

  • Hero Member
  • *****
  • Posts: 545
on: Jul 13, 2018
Over the last century and a half, the main source of increased atmospheric carbon dioxide has been ________.
 
  A) volcanoes
  B) photosynthesis
  C) photoperiodism
  D) rock decomposition
  E) burning of fossil fuels

Question 2



braelync

  • Sr. Member
  • ****
  • Posts: 350
Reply #1 on: Jul 13, 2018
Answer to Question 1

Answer: E

Answer to Question 2

Answer: D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Women who are monozygotic twins and have the same genes are more similar in their marital happiness Women who are monozygotic twins and have the same genes are more similar in their marital happiness
Growth Chart for American Girls From Birth Through Age 3 Growth slows from infancy to toddlerhood b Growth Chart for American Girls From Birth Through Age 3 Growth slows from infancy to toddlerhood b
The two main types of nerve cells. The two main types of nerve cells.
Atmospheric Hazards: Assault by the Elements Atmospheric Hazards: Assault by the Elements
Covalent bond- carbon rings Covalent bond- carbon rings
The Cs-131 nuclide has a half-life of 30. years. After 139 years, about 3.0 grams remain. The ... The Cs-131 nuclide has a half-life of 30. years. After 139 years, about 3.0 grams remain. The ...
Video: Causes of Acne

For a complete list of videos, visit our video library