you should always refrigerate your foods properly, use proper hygiene when cooking and preparing food. And cook the food properly in a hot pan/stove/oven as this kills any bacteria in the meat reducing you risk of salmonella food poisoning.
Oh my goodness! Salmonella is using microbiology? What evil genius has trained them in the subject? My God, what has science done!?
it own self
The thing that can be done to reduce bias is sampling random things
plantation of trees must be done to reduce the impact.
A force machine does not reduce the amount of work that has to be done
Elevated land
noting
The best way is to reduce smoking as smokers chances to get emphysema is much higher than the non-smokers. However, in certain people, it is due to genetic reason (ie: alpha-1-antitrypsin deficiency) which means not much thing can be done to prevent it but some intervention is still possible to reduce the symptoms.
If the test is done properly, the chances to give false positive test are very slim indeed.
Cannot be done.
nothing yet
A lot