(Question)
You are presented with the question "Viruses are usually considered to be what?" and the following answer choices: - dangerous - made up of bacteria - made up of medicine - harmful substances - made up of atoms - made up of colors - homogenous - major threat to health Now knowing that viruses are usually considered to be nonliving and all matter, living and nonliving, is made up of atoms, choose the best answer.
(Answer)
made up of atoms

(Question)
You are presented with the question "what causes sweat to be produced to cool a person down?" and the following answer choices: - exercise and fever - wool pants - the sun - Movement of an air mass - shooting stars - Evaporation - centralized nervous system - water vapor Now knowing that when the body is hot , sweat is produced to cool the body and exercise, fever, and heat cause the body's temperature to rise, choose the best answer.
(Answer)
exercise and fever

(Question)
You are presented with the question "A greenhouse is used to protect flowers from what?" and the following answer choices: - sunlight - fertilizer - salinity - Dehydration - cold air - the cold - Winter - irrigation Now knowing that agreenhouse is used to protect plants from the cold and flowers are beautiful kinds of plants, choose the best answer.
(Answer)
the cold