Answer:
Smog.
Explanation:
Hello there!
Here's the definition you were looking for:
smog
<em>noun</em>
1. fog or haze combined with smoke and other atmospheric pollutants.
"exhaust emissions are mainly responsible for the smog"
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Answer:
Sickle cell trait has been observed in regions where malaria is common for over 50 years and has since become renowned for its perplexing ability to protect its carrier from malaria.
Explanation:
Their failure will adversely affect our ability to control malaria.
This is due to what we call 'random allocation'
