mass wasting changes the surface of the earth quickly
A shiny surface reflects 'more' light than a matt surface.
False
if they didn't you couldn't see them
True, that is a source of friction.
A variable does and must change, but you can only have one variable, otherwise the experiment becomes biased and unfair
false
False. If you watch water boil in a transparent container, you will see bubbles of gas form on the sides and bottom. They break loose and rise to the surface.
A shiny surface reflects 'more' light than a matt surface.
false !
false
False A+
false
false
false
false
False
It is not true.