Tectonic plates aka faults above the earths mantle in the crust
Answer:
photoreceptors are visual
chemoreceptors are smell
mechanical is touch
Explanation:
1) The level of Carbon dioxide grows with the emission of CO2 by humans, animals and by human activity but it's kept stable by the process of photosynthesis, for which plants need carbon dioxide, so they consume it
2) Oxygen is consumed by humans and animals, so its level would go down, but again: plants create new oxygen through photosynthesis
So the answer is: plants that undergo photosynthesis
Answer:C. melted rock from earths mantle rises between two tectonic plates
Explanation: got it right on ap3x