Fact 1: Carbon may be stored in sedimentary rock for millions of years. Fact 2: Limestone is a rock composed of calcium, carbon and oxygen. Given the two facts above, answer the question "what is in limestone?" with the following options: - abrasion - fossils - an anion - acid - nitrogen - gypsum - carbon - NaCl
carbon

Fact 1: Planting trees has a positive impact on an ecosystem. Fact 2: Forest is largely pine trees. Given the two facts above, answer the question "what has a positive impact on an ecosystem?" with the following options: - animals - Frogs. - chemical spills - Frogs - pines - parasites - pollution - mussels
pines

Q: Fact 1: Water vapor cooling causes that water vapor to condense. Fact 2: Vapor condenses, falls and seeps into the ground. Given the two facts above, answer the question "Water vapor cooing causes that water to fall and what?" with the following options: - It gets heated up - Plant growth is reduced - Evaporation - seep into the ground - Exfoliation - circulatory systems - Heat energy - reflect objectstowards the eye
A: seep into the ground

Question: Fact 1: Harming an animal species causes that animal 's population to decrease. Fact 2: Ecology is the study of populations or communities. Given the two facts above, answer the question "Ecology studies something that decreases when an animal species is what?" with the following options: - omnivores - harmed - deadly - dead - haploid - negative - dormant - inactive
Answer: harmed

*Question*
Fact 1: Viruses contain DNA but not much else. Fact 2: Examples include influenza, rabies, HIV, and Herpes viruses. Given the two facts above, answer the question "what contains DNA?" with the following options: - ovum - DNA - HPV - p53 - HIV - O3 - RNA - gene
**Answer**
HIV

Q: Fact 1: Photosynthesis means producers convert from carbon dioxide, water, and solar energy into carbohydrates for themselves. Fact 2: Leaf cells produce sugar by photosynthesis. Given the two facts above, answer the question "What is produced by leaf cells as a carbohydrate by producers?" with the following options: - sugar - glucose - plants - salt - cane - coffee - food - truvia
A: sugar