Answer:
Independent: electronics in room
Dependent: hours of sleep
Control: school nights, night routine, lighting of room, the time the person decides to go to bed
Confounding: the person(?? not entirely sure on this one)
tiny bit of whiskey , lemon and honey is home made remedy for coughing and throat treat nose with saline water for stuffy nose, make sure they get rest if its effecting their sinuses , temporary relieve is a ice/pack/hot/cold pack helps alot ,if you have medication use it , if the cold is in its first stages ,it is easier to combat, but even then it might take time if becomes more serious /complicated contact a medical professional
The answer is B ( too many words can cause confusion)
Good luck on your test
Prolong feeling of sadness, loss of interests, angry outbursts, tiredness, sleep disturbances, anxiety, loss of appetite, slowed thinking, feeling of worthlessness, frequent/reoccurring of suicidal thoughts, unexplained physical problems and having a hard time thinking. [These are just a few symptoms]
The correct answer is A (Automobiles).
Particulate matter is a complex mixture of extremely small particles and liquid droplets.
One of the major components of particulate matter is sulphate usually coming from sulphur dioxide found in exhaust fumes that have been produced by automobiles . Other components are nitrates , ammonia, sodium chloride and black carbon.
Other components of particulate matter come from dust, soot, smoke, industrial emissions.
Particulate matter is one of the most common contributor to air pollution.