State two reasons why paleontologists believe that birds are descended from dinosaurs.

the answer for this question would be d. glaciers

the second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus

is this for the e2020 class

the main thing i would use is bricks because if there is a hurricane, there is a great possibility for the house to still stand. and i would also use plexiglass windows instead of regular windows because plexiglass isn't prone to breaking.