Answer:
1: plastic are poor conductor BC oz they allow heat to pass through
Wow that's a lot of stuff for just 10 points you know
I have written it out and explained it. I hope it helps! Here:
The atmosphere of the early earth had high concentrations of carbon dioxide due to the volcanic activity at this time in the earth's development. The atmospheric concentration of oxygen only began to increase with the appearance of the first types of photosynthetic organisms. These organisms used energy from the sun, water and carbon dioxide to make food. Oxygen was a byproduct of this reaction.
A pH of 6.0 to 7.0 is good for soil