Why is the sky blue?
Why does the moon appear in the daytime?
How much does the sky weigh?
How much does the Earth weigh?
How do airplanes stay in the air?
Why is water wet?What makes a rainbow?
Why don't birds get electrocuted when they land on an electric wire???
tell any two answers
Answers
Explanation:
The Short Answer: Gases and particles in Earth's atmosphere scatter sunlight in all directions. Blue light is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time.
Answer:
Thus, as sunlight of all colors passes through air, the blue part causes charged particles to oscillate faster than does the red part. ... More of the sunlight entering the atmosphere is blue than violet, however, and our eyes are somewhat more sensitive to blue light than to violet light, so the sky appears blue
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."
The air that surrounds us begins at the surface of the Earth and goes up to the top of the sky. All that air, the entire atmosphere, weighs about 5 million billion tons! We don't get crushed because all that weight is distributed evenly over the entire surface of the Earth.
5.972 × 10^24 kg
Four forces keep an airplane in the sky. They are lift, weight, thrust and drag. Lift pushes the airplane up. The way air moves around the wings gives the airplane lift.
Rainbow on the Road
This phenomenon occurs because when it rains, this oil comes (on the road) in contact with water. As you've surely heard in the past, oil and water do not mix, because the density of oil is less than that of water.
Birds don't get electrocuted on power lines because electricity does not move through their bodies when they sit on them. When the bird sits with both its feet on the electrical wire, their legs have an equal electrical potential so the electricity will not move throughout the bird's body.