What is compression? A
When air molecules move apart from one another.
B.
When air molecules collide with one another.
С
When air molecules become packed tightly together.
D
When air molecules move around freely.

Why don't you see your reflection in water with waves or repples

The seven sisters, seven stars located more than 400 light-years away in the taurus constellation can be seen here with venus and another constellation, orion. the seven stars stay grouped together but seem to move, like the planet venus. why do stars seem to move like planets in the night sky?

What is a possible result of higher air temperature caused by global warming