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sasho [114]
4 years ago
13

The main pieces of information about the earth's age come from _____.

Biology
2 answers:
katrin [286]4 years ago
6 0

Rocks. I hope you get it right.

Tju [1.3M]4 years ago
4 0

Radiometric age-dating

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In animals, carbon dioxide waste is exchanged for
LUCKY_DIMON [66]

Answer:

oxygen

Explanation:

  • Through the process of respiration , in lung the carbon dioxide from the blood is exchanged with oxygen.
  • The smallest dunctional unit if the lung is the alveoli
  • At this level the gases are exchange through the capillaries present close to the alveoli.
  • The concentration gradient ,meaning the greater amount of oxygen present in the lungs and greater amount of carbon dioxide in the blood creates a gradient that allow the movment of oxygen into the blood and carbon dioxide in the alveoli through the membrane .
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3 years ago
Which is most likely to result after a farmer sprays his crops with pesticides
WITCHER [35]

Answer:

The bugs in the soil or on the plants will die

Explanation:

The bugs and some of the plant will be infected some will die some will stay alive it all depends on how strong the pesticide is and consummation of the crop will sometimes result in a dangerous turn of event to your stomach if not washed properly.  

5 0
3 years ago
Read 2 more answers
• frogs and fishes can ____, ___
mezya [45]

Answer:

swim

Explanation:

because frogs were born with no feets so it can swim even though frogs have feet

7 0
3 years ago
How much work is done on a 30 N that is lifted 1.5 M off the ground?
Cerrena [4.2K]

Answer: 45 J

Explanation:

The formula for work is force x distance.

W = fd

W = (30 N)(1.5 m)

W = 45 J

7 0
3 years ago
The human eye can detect wavelengths between 400 nm and 700 nm. The sky appears blue (490 nm) due to the scattering of visible l
kondor19780726 [428]

Answer:

In the electromagnetic spectrum, the visible spectrum is the part, which is perceptible to the human eye. The electromagnetic spectrum in this array of wavelengths is known as simply light or the visible light. A general human eye will react towards the wavelengths in the range between 380 to 740 nm. A human eye sees the sky as blue that comes in the wavelength 490 nm because of the scattering of the visible light by the particles in the atmosphere. This concludes that 490 nm is the sole wavelength, which is reaching the eye.

3 0
3 years ago
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