Answer:
When the soot vanished, the light-flecked moths started to repopulate. Their numbers increased as the dark peppered moths began to decline.
Explanation:
a passage for surplus water from a dam.
Answer:
It's important for a scientist to try to hold all variables constant except for the independent variable. If a control variable changes during an experiment, it may invalidate the correlation between the dependent and independent variable. When possible, control variables should be identified, measured, and recorded.
Maybe not because after light increases stomas will decrease and after that plant leaf will take less co2 and less co2 mean less synthesis in the plant.
