Problem: OPTIONS:
- improve sediment quality
- improve photosynthesis quality
- improve soil texture
- improve soil quality
Q: Q: What is the purpose of utilizing careful farming practices such as rotating crops or planting nutrient rich crops? A:
Answer: improve soil quality

Problem:OPTIONS:
- conduction
- function
- solar
- activation

Q: What type of energy is required in all chemical reactions? A:
****
A: activation

Q: Planes fly in what layer of the atmosphere because there is less friction and turbulence? A:
OPTIONS:
- mesosphere
- ozone layer
- crust
- stratosphere
stratosphere

Q: What type of evolution often happens in species that have symbiotic relationships? A:
OPTIONS:
- retrogression
- succession
- spontaneous evolution
- coevolution

Answer: coevolution

Question: Q: The angle at which light bends when it enters a different medium is known as what? A:
OPTIONS:
- bounce
- frequency
- resonance
- refraction
Answer: refraction

input: OPTIONS:
- carbon shell
- dioxide shell
- dioxide core
- carbon core Now, answer this question: Q: What makes organic compounds ubiquitous is the chemistry of their what? A:
A:
output:
carbon core