Answer:
Control is a group generall very important in an experiment because it allows you to eliminate and isolate these variables.
Answer:
as low as possible and using scanning objective (4x). ... then low power, you won't be able to focus anything under high power.
Answer:carbon dioxide
Explanation:
Cause animals release carbon dioxide for plants to inhale amd exhale oxygen
A reduction in volcanic activity and earthquakes. Which results in causing warmer surface temperatures because particles released by volcanoes have a cooling effect.
