Answer:

Explanation:
We know that the speed of light is equal to 
We need to find how far the light travel in 3 days.
Speed of an object is equal to distance covered divided by time taken.
Also, 1 day = 86400 s
3 days = 259200 s
So,


So, the light will travel
in 3 days.
I would say D and if that's not it it's A
Hope This Helps! Have A Nice Day!!
Answer:
Explanation:
Causes of Greenhouse Effect
- Burning of Fossil Fuels. Fossil fuels are an important part of our lives.
- Deforestation. Plants and trees take in carbon dioxide and release oxygen.
- Industrial Waste and Landfills.
- Depletion of Ozone Layer.
- Acidification of Water Bodies.
Your answer might be Electromagnetism