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

Author Question: What do researchers use to directly measure the rate of productivity? A) Carbon-12 B) Biomass C) ... (Read 33 times)

jenna1

  • Hero Member
  • *****
  • Posts: 568
What do researchers use to directly measure the rate of productivity?
 A) Carbon-12
  B) Biomass
  C) Carbon-14
  D) None of these choices

Question 2

Waves tend to be parallel to the shore when they break due to the process of ____.
 A) diffraction
  B) reflection
  C) refraction
  D) reaction



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

coreycathey

  • Sr. Member
  • ****
  • Posts: 333
Answer to Question 1

C

Answer to Question 2

C




jenna1

  • Member
  • Posts: 568
Reply 2 on: Aug 22, 2018
Wow, this really help


LVPMS

  • Member
  • Posts: 323
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

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?

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?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

There are more bacteria in your mouth than there are people in the world.

For a complete list of videos, visit our video library