Black holes is exists
Black holes is highly gravitional wave field in space
combustion of fossil fuels would be the correct answer when dealing with the alteration of the carbon cycle.
Answer:
electromagnetic waves
Explanation:
"wave" is a common term for a number different ways in which energy is transferred
10 kilograms of mass weighs 98.1 newtons on Earth,
16.2 newtons on the Moon, 37.1 newtons on Mars,
and other weights in other places.