Fact 1: Phytoplankton are bacteria and algae that use sunlight to make food. Fact 2: Sunlight beams down on the different types of algae. Given the two facts above, answer the question "Phytoplankton use what to make food?" with the following options: - sun's heat - sunlight beams - refraction of light - heat energy - visible energy - by indirect light - produce light - Positive charges
sunlight beams

Fact 1: Viruses often infect bacteria. Fact 2: Infected birds spread the bacteria in their droppings. Given the two facts above, answer the question "Viruses often can spread bacteria through what?" with the following options: - the skin - microscopes - contamination - covering - washing - alveoli - droppings - coating
droppings

Q: Fact 1: Running water is better able to dissolve oxygen and nutrients than standing water. Fact 2: Mineral nutrients are interrelated. Given the two facts above, answer the question "Running water is able to do what to minerals and oxygen?" with the following options: - evaporation - dissolve them - reducing acid rain - recycling - clean them - separate them - hydration - cool them
A: dissolve them

Question: Fact 1: Weathering means breaking down rocks from larger whole into smaller pieces by weather. Fact 2: When rocks are weathered and eroded they break down into smaller pieces of rocks and minerals. Given the two facts above, answer the question "Weathering means eroding rocks down into what pieces of minerals?" with the following options: - similar - sand - small - soils - smaller - larger - calcite - bigger
Answer: smaller

*Question*
Fact 1: Harming an animal species has a negative impact on the population size of that species. Fact 2: Pollution is usually harmful to one or more species of animal or plant. Given the two facts above, answer the question "What is usually harmful to the population size of a species?" with the following options: - Pollution - reproduction - viruses - disease - habitat - ecosystems - influenza - deforestation
**Answer**
Pollution

(Question)
Fact 1: Keeping food cold is used for keeping food fresh. Fact 2: On inspection the temperature of the fridge was found to be adequate for food storage. Given the two facts above, answer the question "Keeping things what is a way to adequately store them?" with the following options: - cold in a fridge - hydrogen and oxygen - hot in a pan - layers of fat - in the trash - out in the yard - Electrical energy - staying warm
(Answer)
cold in a fridge