Many cacti have roots that spread out widely, but only penetrate a short distance into the soil. In one case, a young saguaro only 12 cm (4.7 in) tall had a root system with a diameter of 2 m (7 ft), but no more than 10 cm (4 in) deep.
In other words they can't penetrate that deep.
Answer:
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Explanation:
Here's the solution,
<u>1. Condensation</u> :
=》the changing of a gas to a liquid
<u>2</u><u>.</u><u> </u><u>troposphere</u><u> </u><u>:</u>
=》the layer in which weather changes occur
<u>3</u><u>.</u><u> </u><u>Ozonosphere</u><u> </u><u>:</u>
=》layer absorbing ultraviolet rays
<u>4</u><u>.</u><u> </u><u>evaporation</u><u> </u><u>:</u>
=》the changing of liquid to a gas
<u>5</u><u>.</u><u> </u><u>G</u><u>reenhouse</u><u> </u><u>effect</u><u> </u><u>:</u>
=》carbon dioxide and water vapor trapping heat given off by Earth
<u>6</u><u>.</u><u> </u><u>Automobile</u><u> </u><u>:</u>
=》the major source of pollution
<u>7</u><u>.</u><u> </u><u>Ionosphere</u><u> </u><u>:</u>
=》layer responsible for reflecting radio waves
Answer:
Yes.
Explanation:
In fact, photons are the only things that humans can directly see. Human eyes are specifically designed to detect light. This happens when a photon enters the eye and is absorbed by one of the rod or cone cells that cover the retina on the inner back surface of the eye.
Answer:
D. Mitochondria are large enough to be seen with modern light microscopy, and can occupy as much as 20% of cytoplasmic volume.
Explanation:
Mitochondria are oval shaped organelles responsible for cellular respiration.
One of their defining characteristics
is the influx of protons from the mitochondrial membrane that enables ATP synthesis.
Mitochondria are known as the power house of the cell.
Structurally, mitochondria are spherocylindrical with a length of 2 microns and a diameter of 1 micron.
