Help in the science pls (my gramm3er is dead)

Explanation:

Yes, because the proton and electron numbers are the same. Atoms from the same element with difference neutron numbers is called a isotope.  

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.

weathering is the answer.