(Q).
Exhaling, or breathing out, decreases the size of the chest, which increases air pressure inside the lungs. Jeff takes a breath and lets it out. When do his lungs experience the most air pressure after inhaling or after exhaling?
(A).
after exhaling

(Q).
With higher levels of dissolved carbon dioxide in ocean water, the water becomes more acidic. Bob is testing samples of ocean water from different places. The sample of water from off India's coast has more dissolved carbon dioxide, than the sample of water from off the United States' coast. Therefore, the water from India's or United States' coast is more acidic?
(A).
India's

(Q).
Exercising muscles increases their size, and bigger muscles have greater strength. Brad wants to go to the gym less regularly, so that his muscles will get smaller. Another aspect of having smaller muscles means that Brad will likely be stronger or weaker?
(A).
weaker