Question

1.Why is the sky blue?
2.Why does the moon appear in the 3.daytime?
4.How much does the sky weigh?
5.How much does the Earth weigh?
6.How do airplanes stay in the air?
7.Why is water wet?
8.What makes a rainbow?
9.Why don't birds get electrocuted when they land on an electric wire?​

Answer 1

Ans:

1-The sky is blue due to a phenomenon called Raleigh scattering. This scattering refers to the scattering of electromagnetic radiation (of which light is a form) by particles of a much smaller wavelength. These shorter wavelengths correspond to blue hues, hence why when we look at the sky, we see it as blue.

2- We can see the moon during the day for the same reason we see the moon at night. The surface of the moon is reflecting the sun's light into our eyes. ... "When we see the moon during the day it's because the moon is in the right spot in the sky and it's reflecting enough light to be as bright, or brighter, than the sky."    

SORRY BUT I DON'T KNOW THE OTHER ANSWERS                                                                

PLEASE MAKE BRAINLY IF STATISFIED WITH THESE 2 ANSWERS                                            

Answer 2

Answer:

1.Why is the sky blue?

The sky is blue due to a phenomenon called Raleigh scattering. This scattering refers to the scattering of electromagnetic radiation (of which light is a form) by particles of a much smaller wavelength. ... These shorter wavelengths correspond to blue hues, hence why when we look at the sky, we see it as blue.

2.Why does the moon appear in the 3 daytime?

We can see the moon during the day for the same reason we see the moon at night. The surface of the moon is reflecting the sun's light into our eyes.When we see the moon during the day it's because the moon is in the right spot in the sky and it's reflecting enough light to be as bright, or brighter, than the sky.

4.How much does the sky weigh?

Take Earths atmospheric pressure being an average 14.7 lbs(6.6kg) per square inch, this means that the sky weighs roughly 5.2 million billion metric tons.

5.How much does the Earth weigh?

Earth weighs about 13,170,000,000,000,000,000,000,000 pounds (or 5,974,000,000,000,000,000,000,000 kilograms).

6.How do airplanes stay in the air?

As long as the wings are creating a downward flow of air, the plane will experience an equal and opposite force—lift—that will keep it in the air. In other words, the upside-down pilot creates a particular angle of attack that generates just enough low pressure above the wing to keep the plane in the air.

7.Why is water wet?

Water isn't wet. Wetness is a description of our experience of water; what happens to us when we come into contact with water in such a way that it impinges on our state of being. We, or our possessions, 'get wet'. A less impinging sense experience of water is that it is cold or warm, while visual experience tells us that it is green or blue or muddy or fast-flowing. We learn by experience that a sensation of wetness is associated with water: 'there must be a leak/I must have sat in something.'

8.What makes a rainbow?

A rainbow is caused by sunlight and atmospheric conditions. Light enters a water droplet, slowing down and bending as it goes from air to denser water. The light reflects off the inside of the droplet, separating into its component wavelengths--or colors. When light exits the droplet, it makes a rainbow.

9.Why don't birds get electrocuted when they land on an electric wire?

We know that the electric lines carry a constant voltage supply across the power lines. Therefore, the potential difference across the claws will be negligible or zero. Thus, the current will not flow through the bird and hence they will not be electrocuted.

Explanation:

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