Answer:
Environment
Explanation:
In a research study, internal validity refers to how well an experiment was carried out and to what extent the piece of evidence supports a claim.
The lesser the chance of confounding in a study the higher the internal validity.
Study of memory is possible through learning the electrical activity created by neurons.
Therefore, thunderstorm will affect the readings hence it is an Environmental threat to the internal validity.
Lung cancer, respitory problems, digestive problems, and other cancers.
Heat stroke, heat exhaustion, heat cramps and heat rash
I would say all but A, but if only one answer it is, I would say C
Answer:
B
Explanation:
<u>The answer is B, because Calories make you gain weight and eating to much causes you to sometimes get over weight depending on the age.</u>
A) Taking weight supplements can help but could cause bad side affects or getting addicted and not liking your needed weight.
C) Physical activity IMPROVE your over-eating but burning the calories causing you to stay fit and if you eat the right things,reducing hours will increase the weight your trying to use
D) Sleeping fewer nights is very unhealthy especially if your stressed.Sleeping the right amount gets you energetic enough for you to do physical activity and in the process,lose weight.Losing sleep does no good to lose your heaviness,nor for your mental health.
