<span>The answer is option D.
Cold, or common cold, is a viral infectious disease that is infected through the air mainly via close contact, and touching objects previously grabbed by infected people
and avoiding going into the school and keeping a distance from her family is the best option in order to prevent further spread of the disease.</span>

⇰Let O be the point of observation on the ground OX.
⇰Let A and B be the two positions of the jet.

















![\bf[ \boxed{➯OM=OL+LM=OL+AB=(x+3000)m \: and \: BM=h \: m]}](https://tex.z-dn.net/?f=%20%5Cbf%5B%20%5Cboxed%7B%E2%9E%AFOM%3DOL%2BLM%3DOL%2BAB%3D%28x%2B3000%29m%20%20%5C%3A%20and%20%5C%3A%20BM%3Dh%20%5C%3A%20m%5D%7D)


⇰ Equating the value of x from (1) and (2),we get;





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<span>Smoking
during pregnancy has what effect on the incidence of Sudden Infant
Death Syndrome?
A. Increases the incidence of SIDS in newborns. </span>
I would say bicycling because jogging and jumping jacks can be bad on your knees because of the impact. Biking is pretty smooth though and wouldn't have much of an impact. Hope this helps :)