Which step only occurs in the formation of coal? a. movement of the earth causes the rock to fold and form a trapb. decaying swamps are covered with seawaterc. great temperatures build up over layers of organic materiald. organic remains are trapped under layers of sediment and water

a

explanation:

many plants naturally reproduce this way, but it can also be induced artificially. horticulturalists have developed asexual propagation techniques that use vegetative plant parts to replicate plants. success rates and difficulty of propagation vary greatly. monocotyledons typically lack a vascular cambium and therefore are harder to propagate.