The sky is blue because blue light is scattered in all directions by the tiny molecules of air in Earth's atmosphere. Blue 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:
The average flow velocity of a river increases along its long profile. This makes sense; along the profile, more potential energy is converted to kinetic energy, increasing the velocity. This is only the average velocity however; a cross-section of a river shows that the velocity varies from one side to the other.
Explanation:
<span>trucks drive on them while they are frozen...</span>
Answer:
The young generation is the future so priority on education means better chance at having a good job as the person will have a wider skillset which also means the economic oppurtunities are improved.
Answer:
2 half lives
Explanation: 100% then 50% = 1 half life, 50% then 25%=2nd