Which type of heat transfer has warm fluids rising and cold fluids sinking?(science)

heat transfer in a fluid in which hot fluid rises and cold fluid sinks; setting up a cycle

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.