Atree was chopped down and cut up in a local forest. the tree changed in shape.

which kind of change took place?

a. change in reaction

b. phase change

c. physical change

d. chemical change

Idon’t understand this page, can someone ?

How did planetesmals form planets? a. they broke apart into smaller chunks.b. they collided and stuck together.c. they cooled and pulled ice together.d. they began to rotate.

Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.