Organisms don’t produce carbon dioxide while they are alive ; they only release it after they are dead

Using a wheel and axle, a farmer is trying to lift a bucket of water from the bottom of a well. the larger wheel has a radius of 40 cm compared to the axle that has a radius of 10 cm. if a bucket of water is 50 n, then how much effort is required to raise it? 12.5 n 200 n 2 n 500 n

The material that keeps its new shape after it is stretched is called?

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of