How have humans contributed to climate change and what evidence supports this?

explanation:

they can be good for the ecosystem

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.

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