Answer: Wind energy can harm migrating birds.
Explanation: Cost doesn't make it controversial, and the first two make me laugh!
Answer:
research question: how do different humidity levels affect the heights of different types of trees
independent variable: humidity level
dependent variable: tree height
constants: temperature, light, duration of time
control group: tree left outside in normal conditions
Explanation:
Answer:
c
Explanation:
the market for wood furniture and other products are on high demand so cutting down and planting again will help in availability and good weather
Answer:
the answer is a prokaryotic cell
