Answer: This is an observational study
Explanation:
What is an observational study?
Observational studies are those studies in which a researcher will set their time apart to observe a particular action without interrupting it or changing it ; they observe it as it is without introducing anything or reducing anything from it.
A researcher above is just watching how people walk from or to the airplane without him making any interventions.
Answer:
False
Explanation:
At common law, a minor can be held contractually liable for items and goods that are necessary to the minors health and safety and medical expenses on health are one of such, others are food, shelter and clothing. While expenses on medical care provided to a minor is primary the responsibility of the minors parents, such minor can be contractually liable if the parents cannot afford the money.
Answer:
The smoke from the stoves contributes to air pollution.
Explanation:
United States is facing the problem of emission of toxins from the wood stoves. Eighty percent of the wood-burning stoves have been banned by the Environmental Protection Energy because of the rising concern of heavily polluted air. EPA has taken some steps to counter this problem such as requirement of emission performance label, incentives, and benefits for the installation of cleaner wood-burning alternatives, etc
Answer:
the anwser is C
Explanation:
the big bang theory has been prooven the univers is still expanding to this day teh problem is when people are to set on there beifes that they wont belive something that has been proven
Answer:
yes socializing effort is a commom
