Fact 1: Energy is used for heating a building by a heating system. Fact 2: Radiators are used to heat the building, The energy source is oil. Given the two facts above, answer the question "What do radiators use to heat buildings?" with the following options: - coal - CFCs - Solar power - Oil - Oxygen - hot - Hydrogen - fuse
Oil

Fact 1: Consumers take in food by eating producers or other living things. Fact 2: Decomposers produce nutrients for producers. Given the two facts above, answer the question "Which is higher on the food chain?" with the following options: - insects - animals - humans - glucose - decomposers - herbivores - producers - consumers
consumers

Q: Fact 1: Trees have woody stems covered with bark. Fact 2: During the stripping, the protective layer of inner bark is removed. Given the two facts above, answer the question "Trees have woody stems covered with what?" with the following options: - food and shelter - smooth ridges - looseness - protective layer - Organic compounds - plastic sheet - heat energy - thin metal
A: protective layer

Question: Fact 1: Mammals breathe with the help of a diaphragm. Fact 2: All humans are mammals. Given the two facts above, answer the question "what breathes with the help of a diaphragm?" with the following options: - plants - bears - babies - insects - humans - animals - goats - oxygen
Answer: humans

*Question*
Fact 1: When the seasons change from the summer to the fall , the amount of daylight will decrease. Fact 2: Symptoms of their depressive illness are worsened by decreased daylight. Given the two facts above, answer the question "When the seasons change from the summer to the fall, symptoms of what will sometimes worsen?" with the following options: - vitamin D excess - hypothyroidism - Dehydration - direct damage to the lungs - Thanksgiving - green - Abnormal cell growth - depressive illnesses
**Answer**
depressive illnesses

(Q).
Fact 1: The Earth revolving around the Sun causes the seasons to change on its axis. Fact 2: Seasons are caused because the earth's axis is tilted as the earth revolves around the sun. Given the two facts above, answer the question "what causes seasons?" with the following options: - moon - decreased differentiation - earth's revolving - the ocean - Physical weathering - colors of the spectrum - gravity - dry conditions
(A).
earth's revolving