The winter of 2020-2021 was the height of the epidemic in the US, with cumulative covi-19 deaths rising from 300,000 to 400,000 in just over a month. The number topped 500,000 in late February 2021, shortly after Democratic President Joe Biden took office. The epidemic eased in the LATE spring and early summer as the Biden administration aggressively promoted vaccination. That's when Suzanne began planning the show on the National Mall in detail. "We were losing 100 to 150 people a day. So she estimates that by the end of the exhibition, the cumulative death toll in the United States will be somewhere between 610,000 and 620,000."

a) madame podtochina used witchcraft to make it disappear.

what does the teacher mean

i have a basic answer but if you want a more in depth

the correct answer is option d. none of these. it is noted that options a, b, and c share the same content.

despite the valid answer provided at the last sentence of each of the options, a question/answer format shouldn't include humourous themed responses such as "you bet your thermal pj's we do." - unless of course, the answer is carried out in an informal environment. this could be replaced with a simple "yes" or "it is necessary".

the question should be re-phrased to a more appropiate syntaxis. instead of "do we need the greenhouse effect? ", it should be written as "is the greenhouse effect necessary? " in order to give it a general scope, instead of limiting the answer to the needs of "we" the humans.