How many amino acids cannot be made by the body, so they must be obtained in the diet?

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?

What is a group of organisms that are closely related and share similar characteristics

Other than earth, is also known to have magnetic pole reversal? a: venus b: mars c: earths moon d: the sun