What is the difference between diffusion and facilitated diffusion

20 points and brainlist 1. london has suffered from terrible air pollution for at least seven centuries. why is the city so prone to its famous “london fog? ” what did london do to get rid of its air pollution? 2. why does air pollution cause problems in developing nations more than in developed ones?

Explain what a zygote is. use the terms egg cell, sperm cell, and fertilization in your explanation.

What problem would a person most likely have if her kidney did not work correctly?