An air mass that develops over land near the north pole will be? a .warm and humid
b .cold and humid
c .warm and dry
d. cold and dry

Some fossils provide evidence to suggest that earth's climate has changed over time. which information can scientists obtain from these fossils? check all that apply

Which outcome is not caused by gravitational forcea. gas and dust come together to form a planet b. planets orbit a star c. two atoms come together to form a molecule d. stars cluster to form a galaxy

Which phrase describes the time it takes for a planet to make a complete rotation