Some arthropods have special excretory structures, and insects are the largest group of arthropods. Given these facts, what can have special excretory structures among the following options: - barnacles - animals - feces - molecules - fungi - cows - insects - planets
insects

Drought is when amount of precipitation decreases, and drought causes famine, which contributes to decentralization and unrest. Given these facts, what can cause famine among the following options: - Movement of an air mass - Effective fertilizers - the ground shaking - Increased irrigation - Crop harvesting - Decreased precipitation - single-celled organisms - forest is destroyed
Decreased precipitation

Q: Behaviors that improve fitness increase through natural selection, and fitness traits relate to an animal s ability to survive and reproduce. Given these facts, behaviors increase through what that improve traits of animal's ability to survive among the following options: - competition - hunting - biological diversity - the environment - eating - produce offspring - natural selection - grooming
A: natural selection

Question: Plastics are made from petroleum and produce toxic waste, and petroleum is a fossil fuel . Given these facts, what is something made from fossil fuel among the following options: - Wood - cigarettes - vehicles - gasoline - Fertilizer - Plastic - Cotton fabric - Fuel cells
Answer: Plastic

*Question*
Melting means changing from a solid into a liquid by adding heat energy, and heat energy from the sun is stored in the earth. Given these facts, what means changing from a solid into a liquid by adding heat from the sun among the following options: - sunlight - sweating - freezing - rain - melting - softening - cooling - boiling
**Answer**
melting

Marine biomes are found in the salt water of the ocean, and an ocean is a large body of salt water. Given these facts, marine biomes are found in large bodies of what among the following options: - fresh water - the environment - salt water - liquid - river water - Absorb light - Sediment - black water
salt water