Physical change of matter alters the
a. molecules not the atoms.
b. composition not the appearance.
c. appearance not the composition.

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?

Which of these parts of the membrane large moecules pass through it ?

What best describes emerging scientific ideas