Q: Which of the following can cause erosion?
A: flowing water
Q: What should a scientist do to help make sure the results of an experiment are unbiased?
A: Ask other scientists to attempt to reproduce the results.
Q: Which part of the body works closely with the digestive system to transport nutrients to the cells?
A: blood
Q: Many bacteria are decomposer organisms. Which of the following statements best describes how these bacteria help make soil more fertile?
A:
The bacteria break down plant and animal matter.