If limestone contains carbon, then what is in limestone? Answer choices: - abrasion - fossils - an anion - acid - nitrogen - gypsum - carbon - NaCl
carbon

If pines have a positive impact on an ecosystem, then what has a positive impact on an ecosystem? Answer choices: - animals - Frogs. - chemical spills - Frogs - pines - parasites - pollution - mussels
pines

Q: If water vapor cooling causes that water to fall and seep into the ground, then water vapor cooing causes that water to fall and what? Answer choices: - 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: If ecology studies something that decreases when an animal species is harmed, then ecology studies something that decreases when an animal species is what? Answer choices: - omnivores - harmed - deadly - dead - haploid - negative - dormant - inactive
Answer: harmed

*Question*
If hIV contains DNA, then what contains DNA? Answer choices: - ovum - DNA - HPV - p53 - HIV - O3 - RNA - gene
**Answer**
HIV

Q: If sugar is produced by leaf cells as a carbohydrate by producers, then what is produced by leaf cells as a carbohydrate by producers? Answer choices: - sugar - glucose - plants - salt - cane - coffee - food - truvia
A: sugar