It is gradual, as they take time to do so. It can vary from weeks to months, or even days if they're lucky.
The reaction speeds up because the enzyme lowers activation energy, making it faster than if the reaction had to take time to gain activation energy on its own. The enzyme basically lessens the time it needs to take to gain energy
Hope this helps!
Answer:
because there is not a lot of anything in that layer so anything that comes into it creates a reaction, heat
Explanation:
Because there are relatively few molecules and atoms in the thermosphere, even absorbing small amounts of solar energy can significantly increase the air temperature, making the thermosphere the hottest layer in the atmosphere"
