Fact 1: Astronauts require preserved food for extended flights. Fact 2: Custom foods and meals can be created. Given the two facts above, answer the question "What do astronauts need for extended flights?" with the following options: - hydrogen and oxygen - preserved meals - solid, liquid, gas - small meals - fresh meals - Dehydration - nutrients - surprise meals
preserved meals

Fact 1: Many consumers feed at more than one trophic level. Fact 2: Animals are known as consumers. Given the two facts above, answer the question "What do many animals do at more then one trophic level?" with the following options: - rest - drink - score - feed - flee - procreate - food - grow
feed

Q: Fact 1: Hydropower requires damming a river. Fact 2: Hydropower is a renewable, economical source of electricity. Given the two facts above, answer the question "what does a renewable, economical source of electricity require?" with the following options: - damming a river - power stations - freezing h2o - electricity - burning fossil fuels - hydrogen and oxygen - sunlight - nuclear meltdowns
A: damming a river

Question: Fact 1: Playing is one way mammals and other animals learn how to behave. Fact 2: Dogs, of course, are mammals. Given the two facts above, answer the question "Playing is one way what learns how to behave?" with the following options: - bacteria - Man - roaches - koalas - dogs - humans - toads - bears
Answer: dogs

*Question*
Fact 1: Cells are the basic units of the structure and function of living things. Fact 2: Tigers are the largest of the living cats. Given the two facts above, answer the question "Cells are the basic units of the structure and function of what?" with the following options: - water - mammals - ice - tigers - animals - humans - plants - the Sun
**Answer**
tigers

(Q).
Fact 1: Pesticides can cause pollution. Fact 2: Environmental pollution leads to more ill-health. Given the two facts above, answer the question "What can cause illness?" with the following options: - influenza - toxins - pesticides - viruses - fresh air - hypothyroidism - improper pants - bad language
(A).
pesticides