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

Author Question: The average C02 level in the earth's atmosphere is ________ ppm yet the common level injected into ... (Read 83 times)

mmm

  • Hero Member
  • *****
  • Posts: 558
on: Jul 22, 2018
The average C02 level in the earth's atmosphere is ________ ppm yet the common level injected into greenhouses is ________________ ppm.
 
  Fill in the blank(s) with correct word

Question 2

What quality (color) of light stimulates seed germination?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

angrybirds13579

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 22, 2018
Answer to Question 1

about 400 ppm, 900-1200 ppm.

Answer to Question 2

Red.


mmm

  • Member
  • Posts: 558
Reply 2 on: Jul 22, 2018
Thanks for the timely response, appreciate it

peter

  • Member
  • Posts: 330
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Atmosphere of Venus in UV, by Pioneer Venus Orbiter in 1979 Atmosphere of Venus in UV, by Pioneer Venus Orbiter in 1979
Stand in a doorway and hook your fingertips on both sides about chest level or lower. Stand in a doorway and hook your fingertips on both sides about chest level or lower.
The Distribution of the Earth's Wealth The Distribution of the Earth's Wealth
Common Signs and Symptoms of Respiratory Diseases Common Signs and Symptoms of Respiratory Diseases
The IPCC projects sea level rise The IPCC projects sea level rise
The gap between the projected level of greenhouse gas emissions The gap between the projected level of greenhouse gas emissions
Video: Chemical Changes

For a complete list of videos, visit our video library