Answer:
Vacuole. A vacuole is a membrane-bound cell organelle. In animal cells, vacuoles are generally small and help sequester waste products. In plant cells, vacuoles help maintain water balance.
Explanation:
Answer:
It depends on the experiment I think
Explanation:
Answer:
Limiting human use of nitrogen that is in the atmosphere.
Explanation:
Answer: D) By decreasing the activation energy of a reaction
A catalyst is a substance that speed up the rate of chemical reaction without affecting the product of the reaction. They only affect the rate of reaction not the yield of reaction.
Catalyst provide an alternative reaction pathway that has lower activation energy than that of uncatalysed reaction. It increases the frequency of collision and because of these greater collision which lowers the activation energy of the reaction.
Answer:
One of the physical characteristics about a gas is that it is not a solid and it is an invisible gas
Explanation:
12. One of the physical characteristics about a gas
