Gases from burning coal and oil dissolving in water in the atmosphere causes acid rain, and acid rain is harmful rain. Given these facts, what are gases from burning coal and oil dissolving in water in the atmosphere among the following options: - harmful - deadly - h2o - helpful - dangerous - vehicles - green - toxins
harmful

Astem is used to store water by some plants, and when it rains, the roots absorb water quickly and the plants store the water in the stems. Given these facts, plants do what by absorbing water quickly through their roots among the following options: - survival - avoid water - store water - pour water - direct energy - growth - peachleaf willow - release water
store water

Q: Chemical splashing can cause harm to humans, and ozone is harmful to humans and crops. Given these facts, what can harm crops among the following options: - Nematoda - influenza - vehicles - burning - chemicals - smallpox - Roundworms. - flooding
A: chemicals

Question: Roundworms reproduce sexually, and nematodes are millimeter-sized roundworms. Given these facts, what reproduces sexually among the following options: - Most plants - nematodes - planets - bacteria - insects - the Sun - ferns - humans
Answer: nematodes

*Question*
An animal requires nutrients for survival, and animals and humans eat plants for their nutrients. Given these facts, what can a small animal eat in a day for survival? among the following options: - Part of a plant. - some invertebrates - Nutrient rich soil. - deoxyribonucleic acid - Paper from a plant. - food and shelter - A whole tree. - organic molecules
**Answer**
Part of a plant.

Mollusks have a circulatory system with one or two hearts that pump blood, and interestingly, a squid is also a mollusk. Given these facts, which animals have a circulatory system among the following options: - insects - mammals - fur seals - sharks - cows - squids - a fish - chickens
squids