What is the importance of the ozone layer?

Answers

Answer 1

Answer:

Importanceofozonelayer:

The ozone shields the surface of the earth from ultraviolet UV radiation from the sun.
These radiations are highly damaging as they can cause cancer in both plants and animals, damage to eyes and immune system.
They can also lead to variations in global rainfall, ecological disturbances and dwingling of global food suppliers.

Explanation:

Formationofozonelayer:ozone at the higher level of the atmosphere is a product of UV radiations acting on oxygen O2 molecule. The higher energy UV radiations split apart some molecular oxygen( O2) into free oxygen (O) atoms.

Depletionodozonelayer:The amount of ozone in the atmosphere began to drop sharply in the 1980's . This decrease has been linked to synthetic chemicals like cholorofluorocarbons ( CFC's ) which are used as refrigerants and in fire extinguishers.

Answer 2

Answer: to protect us from the harmful UV rays from the sun so we don't become human bacon

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Which of these attributes is generally attributed to KeplerA).The Orbit of Mars is an Ellipse
B).The Earth is Round
C).Force of Gravity Between 2 objects Decreases with Distance
D).Planets Move in circles

Answers

Kepler's first "law":
The orbits of the planets are ellipses, with the sun at one focus.
This would include Mars.

Which of the following energy sources is in no way derived from the Sun?A) nuclear energy B)tidal energy C) wind energy D) petroleum

Answers

Tidal, wind, and oil energy are derived from the sun. Nuclear isn't.

A.) nuclear energy. is the answer

If light travels from oil (slower medium) to water (faster medium) at an angle, what happens to the direction of the light ray in water with respect to normal?A. It moves away from the normal. B. It moves toward the normal.
C. It will move along the normal. D. It will move perpendicular to the normal.
E. It stops traveling.

Answers

If light travels from oil to water at an angle, what happens to the direction of the light ray in water with respect to the normal, is it moves away from the normal.

Answer:

to shorten the other answer...its A

Explanation:

Wave X has an amplitude of 5 and wave Y has an amplitude of 4. What will happen when the crest of wave X meets the crest of wave Y?A crest with an amplitude of 1 will form.
A trough with an amplitude of 1 will form.
A crest with an amplitude of 9 will form.
A trough with an amplitude of 9 will form.

Answers

Answer: A crest with an amplitude of 9 will form.

Explanation:

From super position principle, we know that when two waves move in same medium meet, then the net amplitude of the super imposed waves is sum of amplitudes of individual waves.

A constructive superposition takes place when crest meets crest and crest is formed of higher amplitude or trough meets trough and forms trough of higher amplitude. A destructive superposition takes place when crest of one meets trough of other -a crest or trough can form depending on the larger amplitude of either.

In the given situation, crest of wave X meets crest of wave Y. The amplitude of the super imposed wave would be = 5 + 4 = 9 and a crest would form.

The right answer for the question that is being asked and shown above is that: "A crest with an amplitude of 9 will form." Wave X has an amplitude of 5 and wave Y has an amplitude of 4. the crest of wave X meets the crest of wave Y is that A crest with an amplitude of 9 will form.

When an automotive battery is fully charged, the sulfuric acid and water mixture will have a specific gravity of abouta. 1.0.
b. 0.15.
c. 2.5.
d. 1.3.

Answers

When an automotive battery is fully charged, the mixture of water
and sulfuric acid in it has a specific gravity of about 1.3 .

Answer:1.3

Explanation:

Took the test on Penn foster

Osmotic pressure is created by the presence in a fluid of small diffusible molecules that easily move through the capillary membrane. Osmotic pressure is created by the presence in a fluid of small diffusible molecules that easily move through the capillary membrane. True False

Answers

Answer:

False

Explanation:

When solutions of different concentration are placed, separated by a semipermeable membrane, the molecules pass from the solution with the lowest concentration of solutes to the one with the highest concentration. This generates a pressure difference on both sides of the semipermeable membrane, called osmotic pressure.

Final answer:

Osmotic pressure is created by the presence of small diffusible molecules that easily move through the capillary membrane. It draws fluid back into the capillaries, opposing hydrostatic pressure.

Explanation:

Osmotic pressure is created by the presence of small diffusible molecules that move through the capillary membrane. It is determined by osmotic concentration gradients, which are the differences in solute-to-water concentrations between the blood and tissue fluid. Osmotic pressure draws fluid back into the capillaries, opposing the hydrostatic pressure that forces fluid out of the capillary.

Osmotic pressure is created by the presence of small diffusible molecules that easily move through the capillary membrane. It draws fluid back into the capillaries, opposing hydrostatic pressure.

Learn more about osmotic pressure here:

brainly.com/question/33521596

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Suppose a spacecraft orbits the moon in a very low, circular orbit, just a few hundred meters above the lunar surface. The moon has a diameter of 3500 km, and the free-fall acceleration at the surface is 1.6m/s2. How fast is this spacecraft moving? A. 53 m/s B. 75 m/s C. 1700 m/s D. 2400 m/s

After landing from your skydiving experience, you are so excited that you throw your helmet upward. The helmet rises 5.8 m above your hands. What was the initial speed of the helmet when it left your hands? Express your answer to three significant figures and include the appropriate units How long was it moving from the time it left your hands until it returned? Express your answer to three significant figures and include the appropriate units.

The diagram shows a swinging pendulum.Which best explains what happens to the motion of the pendulum?A. The mechanical energy transforms to thermal energy as the pendulum slows and eventually stops moving. B. The mechanical energy disappears as the pendulum slows and eventually stops moving. C. The pendulum will continue moving at the same speed until someone stops it because energy cannot be destroyed. D. The pendulum will slow down but will never stop moving because energy cannot be destroyed.

Why do you think it might be useful to know the distance between a gun fired and it's target?