Answer:
Option A.
Explanation:
Essentially, the cause of a rainbow is the reflection of sunlight through individual drops of water. Light enters the water and reflects from the opposite side of the water drop, bouncing back through the point of entry. Because the angle or refraction of the light changes as it bounces back.
The answer should be 4) as it is known that uv radiation might have an effect on dna, thus causing mutations such as skin cancer in humans.
Answer:
I know that some herbivores lived in the mesozoic
Answer: 3) The Lisbon earthquake
Explanation: On November 1, 1755 , in the morning hours ,the Libson city got horrifically attacked by the The earthquake which was known as "The great Libson earthquake". There was also a tsunami after the earthquake which stared a fire for regular five days and ruined every part of it. It almost killed from 60,000 to 100,000 people in that destruction along with high environmental loss.
