A brief explanation on how TV uses radio waves.

i just don't really know how to word it.

Abigail roller skates for 4 hours 45 minutes with a constant speed of 12 mph and then another 1 hour 35 minutes with a constant speed of 12 mph. What distance did she go?

Why did the color of the peppered moth change?

What is the vertical distance between low and high tides is?

Which was least likely to have been a component of Earth's atmosphere before life began? A-sulfur B-carbon dioxide C-oxygen D-water vapor

How is using a digital signal like turning on and off a regular light switch?

What are some ways the oceanic crust and the continental crust are alike?

Why is gangue sometimes reprocessed.

4.7 cm. The tube is sealed at one end and loaded with lead shot to give it a total mass of M = 130 g. The tube floats in water (of density 1 g/cm3) in vertical position, loaded end down.

Why is it incorrect to say that vascular tissue, gametophytes, and fronds are all found mosses

Can the validity of a model be limited, or must it be universally valid? How does this compare to the required validity of a theory or a law?