Exercise has a positive impact on a human 's health, and exercise Regular exercise is a sleep promoter. Given these facts, what may improve health among the following options: - Enzymes  - sleep  - food  - Lift  - fats  - insomnia  - hunger  - loud noises
sleep

When the season changes , the amount of daylight will change, and seasonal changes such as winter to summer or fall to winter are best. Given these facts, what changes the amount of daylight among the following options: - converting electricity to heat  - the sun increasing  - fall moving to winter  - The bending of a ray of light  - summer sausage  - global warming  - Electrical energy  - birds hibernating
fall moving to winter

Shivering occurs when many muscles contract a little bit all at once, and shivering heats the body. Given these facts, what does muscles contracting a little bit all at once do among the following options: - biceps  - cause death  - respiration  - staying warm  - rapid expansion  - movement  - heat the body  - to move people
