This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The increase of atmospheric CO2 levels to 400 ppm has tipped Earth's natural greenhouse effect ... (Read 64 times)

vinney12

  • Hero Member
  • *****
  • Posts: 586
on: Jul 29, 2018
The increase of atmospheric CO2 levels to 400 ppm has tipped Earth's natural greenhouse effect toward global warming. The rise of CO2 is due to
 
  A) human activitythe burning of fossil fuels (coal, oil, and gas) and deforestation.
  B) human activityoverpopulat ion and increased reliance on solar energy.
  C) human negligenceefforts of not recycling waste materials for potential reuse.
  D) the industrial revolution and increased cloud cover.

Question 2

The evidence for present-day global warming include
 
  A) extreme weatherheat waves and droughts.
  B) melting of Arctic and Antarctic sea ice and continental ice fields and glaciers.
  C) severe winter storms, and increased downpours and flooding.
  D) all of the above.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

djpooyouma

  • Sr. Member
  • ****
  • Posts: 325
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: D


vinney12

  • Member
  • Posts: 586
Reply 2 on: Jul 29, 2018
Wow, this really help

recede

  • Member
  • Posts: 315
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

A hypothetical example of the bottleneck effect. A hypothetical example of the bottleneck effect.
First-pass effect. First-pass effect.
The steel lamination used in an E coil helps increase the magnetic field strength, which helps the ... The steel lamination used in an E coil helps increase the magnetic field strength, which helps the ...
Effect of Winds on Horizontal Transport Effect of Winds on Horizontal Transport
How to find the domain and range of natural logarithmic functions (Part 1) How to find the domain and range of natural logarithmic functions (Part 1)
The Effect of Multiple Contributing Genes on Phenotypic Variation The Effect of Multiple Contributing Genes on Phenotypic Variation
Video: Angiotensin II - kidneys, adrenal glands and dehydration

For a complete list of videos, visit our video library