22 Use the diagram below to answer the following two questions. Chemical
Change
Physical
Change
I. Chewing and mixing of food with saliva
II. Movement of food through peristalsis
III. Reaction of food with hydrochloric acid
IV. Interaction of food with bile
Which of the digestive processes above will be found in the middle section of the Venn
diagram?
F I
H III
G II
) IV

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.

air

in a tire you fill a tire with air

then a couple days later you check the air pressure in the tire

hope this mark me brainliest