Answer:
Explanation:
All hydrocarbons are apolar
They contain covalent bond(s)
Hydrocarbons contain only carbon and hydrogen atoms
Hyrdrocarbons held by london forces
True answer is d
Raising oestrogen levels so female doesn’t ovulate
Answer:
The control variable is the soldier.
Explanation:
The same soldier is used throughout the test
The <u><em>correct answer</em></u> is:
He needs to select a more representative sample.
Explanation:
Choosing students from the basketball team for the sample he uses on a study of heart rates and exercise will be a biased sample. This is because students on the basketball team are potentially healthier than other students, which means that exercise will not have a large an effect on their heart rate as it would if they were not as healthy and not as physically fit.
In order to reduce the amount of bias, he should choose students from different groups throughout the school.
Answer:
How are you today just wondering sorry..
Explanation:
i'm just going around making sure everyone has a blessed day!
