The sentence that contains an unnecessary shift in verb tense is the second one - Lee noticed a problem and alerts a teacher.
It should be <em>alerted, </em>which is the past tense as the first verb <em>noticed.</em>
It is best to be abstract
Answer:
I think Between 1939 and 1949
Explanation:
Answer: Here are a few bulletin listed problems/matters that are to do with pollution. Pick out which ever is beneficial to you and has more of a stronger pull.
Pollution has a large impact on human health.
The health impacts from many pollutants are completely.
Pollution disproportionately kills the poor and the vulnerable.
Pollution is closely tied to climate changes and biodiversity.
Pollution is neglected.
Pollution is costly.
Explanation:
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