Iabsolutely need now! is it possible for populations to be affected by weather? give examples

Yes of course!
In the most catastrophic case, it can kill hundreds of thousands through hurricanes and the things that come with hurricanes. 
Droughts can cause death by both dehydration and starvation if the rain is the only dependable source of arrogation 
Too much rain causes floods which can be fatal too

Yes, the best example is Antarctica and Sahara desert.
The land present is vast but population is very less or we can say no population

Glucose, also called grape sugar, blood sugar or corn sugar, is among the simplest and one of the primary naturally occurring sugars. produced naturally by plants as the primary photosynthesis product, it is heavily used by living beings as a main energy source and is necessary for cellular respiration. chemically, it is a monosaccharide carbohydrate and serves as a building block for complex sugars like starch.

Some of her  assignments would be creation of drugs. she is a medical chemist after all so she'd need to have the necessary knowledge to make medicine which can later be sold in a pharmacy