HELP ME PLS I NEED HELP I HAVE 5MINS

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Explanation:

Since the blood moves from the body to the right atrium to the right ventricle

i think so it’s will be b yes i believe its

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.