Air pollution harms the respiratory and circulatory systems, and exposure to ozone can diminish lung function and increase susceptibility to respiratory infection. Given these facts, which type of pollution is most harmful to lungs among the following options: - Lead - air - Cars - oil - acid - CFCs - SO2 - mold
air

(Question)
Air pollution harms the respiratory and circulatory systems, and cars are a significant source of air pollution. Given these facts, what harms the respiratory and circulatory systems among the following options: - oil - rain - sulfur - cars - tires - coal - tar - bicycles
(Answer)
cars

Ques: Many corals secrete an exoskeleton that builds up to become a coral reef, and coral reefs are made up of the accumulated exoskeletons of the coral polyp. Given these facts, what do coral polyps form among the following options: - lagoon - graptolites - a cuticle - barnacles - bioaerosols - cave - coral reef - salt and water.
Ans: coral reef

(Q).
Agreenhouse is used to protect plants from the cold, and many orchids are rewarding indoor plants. Given these facts, what uses a greenhouse to be protected from the cold among the following options: - orchids - Roundworms - freezing - clouds - animals - organisms - our planet - monkeys
(A).
orchids

Ques:Reproduction is the process by which living things give rise to offspring, and seed refers to offspring, children. Given these facts, how do living things have children among the following options: - death - people - humans - babies - it needs them - reproduction - mitosis - production

Ans:reproduction

Macroevolution occurs over geologic time above the level of the species, and species is a property of genus, genus is a property of family, etc. Given these facts, what is considered to be part of macroevolution among the following options: - Man - genus - pollen - Birds - legumes - power - embryos - animals
genus