Currently, all newborns in the US are tested for sickle cell anemia and sickle cell trait. Before 2006, some newborns were not tested. If a person has sickle cell anemia, he or she will usually experience symptoms that will lead to a diagnosis. However, a person who has sickle cell trait often is unaware of this condition, unless he or she has been tested. Explain why

significant amounts of nitrogen oxides, carbon monoxide, and other pollution

explanation:

passenger vehicles are a major pollution contributor, producing significant amounts of nitrogen oxides, carbon monoxide, and other pollution. in 2013, transportation contributed more than half of the carbon monoxide and nitrogen oxides, and almost a quarter of the hydrocarbons emitted into our air.

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correct answer: false

while planning water activities, it is very important to consider the weather, because if we do not plan and are going for a surf, then it might be that the hurricane came and drown us or may carry us to long distance from where we can not come back. there are many reasons to take information about the weather when we are planning any water activities.

hence, the correct answer would be false.