This topic contains a solution. Click here to go to the answer

Author Question: According to the greenhouse effect theory, higher concentrations of ________ in the atmosphere ... (Read 31 times)

jon_i

  • Hero Member
  • *****
  • Posts: 549
According to the greenhouse effect theory, higher concentrations of ________ in the atmosphere increase the earth's temperature.
 
  a. Oxygen c. Nitrogen
  b. Carbon dioxide d. Hydrogen dioxide

Question 2

The phylum Arthropoda consists of animals that have a hard external skeleton called an ___________________ __.
 
  Fill in the blank(s) with correct word



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Kedrick2014

  • Sr. Member
  • ****
  • Posts: 359
Answer to Question 1

B

Answer to Question 2

exoskeleton




jon_i

  • Member
  • Posts: 549
Reply 2 on: Jul 21, 2018
:D TYSM


covalentbond

  • Member
  • Posts: 336
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

For a complete list of videos, visit our video library