Which statement describes the formation of galaxies? They begin in nebulas.
Heat and gases contract.
Gravity causes stars to cluster.
Dust and gases contract.

the national environmental policy act (nepa) is a united states environmental law that promotes the enhancement of the environment and established the president's council on environmental quality (ceq). the law was enacted on january 1, 1970. to date, more than 100 nations around the world have enacted national environmental policies modeled after nepa.

a- multicellular

b-eukaryotic

c-no cell wall

d-heterotrophic

e-autotrophic

trachea, alveoli, lung capillaries, arteries

that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."