Fact 1: Carbon dioxide concentrations in the air have increased over the last decade dramatically. Fact 2: Increases in carbon dioxide make the greenhouse effect worse. Given the two facts above, answer the question "How has the greenhouse effect changed in the last decade?" with the following options: - moved to South America - improved - Temperature - fossil fuels - has become cooler - worsened - climate - growth
worsened

(Question)
Fact 1: Insects may live in large colonies and have complex social behaviors. Fact 2: Some Beetles Co-exist in Other Insect Colonies. Given the two facts above, answer the question "what have complex social behaviors?" with the following options: - bees - h2o - dogs - bacteria - beetles - honeybees - bears - plants
(Answer)
beetles

Ques: Fact 1: Loud noises can cause animals to startle. Fact 2: Fireworks that only make a loud noise are called firecrackers. Given the two facts above, answer the question "What could cause an animal to startle?" with the following options: - Firecrackers - Going into hibernation - an object - Electrical energy - an electric stove - Gathering food - Seeing prey - vehicles
Ans: Firecrackers

(Q).
Fact 1: Acid rain has a negative impact on water quality. Fact 2: Acid rain is partly caused by CFCs. Given the two facts above, answer the question "what have a negative impact on water quality?" with the following options: - CFCs - oxygen - hydrogen - oil - h2o - mines - fungi - Cars
(A).
CFCs

Ques:Fact 1: Evolution is a change in the characteristics of living things over time. Fact 2: Characteristics include traits like shape, color, size, and texture. Given the two facts above, answer the question "in evolution, what changes in living things over time?" with the following options: - traits - gravity - oxygen - mammals - h2o - alleles - animals - insects

Ans:traits

Ques: Fact 1: Bacteria in soil convert atmospheric nitrogen into a form usable by plants. Fact 2: Plants have to have nitrogen to grow. Given the two facts above, answer the question "What do plants need to grow?" with the following options: - energy - sunlight - nutrients - bacteria - lifting - Energy. - muscle - darkness
Ans:
bacteria