The aging process of a star is know as

What causes the cycle of seasons on earth? the tilt of earth’s axis the shape of earth’s orbit the direction of earth’s orbit the distance between earth and the sun

Can someone me choose a broad topic and area of focus i am really doing this as a tally to see which one most people pick ok water pollution global warming endangered species atmosphere for the !

In the figure, polygon abcd is transformed to create polygon a′b′c′d′. this transformation is a by a factor of .