Lead emission since early 1980s have DECREASE DUE TO LEAD FREE GASOLINE.
Lead is a natural occurring element that is found in small quantity in rocks and soils. Lead emission is an important environmental health issue because a very small quantity of lead can cause adverse effects on the nervous system of unborn babies and young children. Because of this, the government took all necessary measures to ensure that its emission was drastically reduced.
Answer:
Photosynthesis removes carbon from the atmosphere, and cellular respiration releases carbon back into the atmosphere
Explanation:
Answer:
The rate of activity of an enzyme might change as pH changes
Explanation:
Enzymes are organic catalysts that controls the rate of a specific chemical reaction.
These materials combines substrates in order to lower the activation energy which might serves as a barrier to chemical action.
- Enzymes have specific reactions which they control.
- Temperature and PH conditions control the rate at which enzymes work.
- They are not all produced from the building block of carbohydrates.
