The activation energy as per the definition given by Svante Arrhenius is the minimum amount of energy that is needed for the chemical reaction to proceed. If the amount of the activation energy is decreased then, the reaction would be completed faster.
D
Because most air pollution is caused by the burning of fossil fuels burned in the home
Answer:
Negative growth rate is when a population's average number of deaths is greater than its average number of births. Zero growth rate is when the average number of deaths equals the average number of births.
Explanation:
Answer: Option C
Explanation:
All the communicable diseases are contagious. They spread from one person to another person.
They are transmitted by the common routines that we do in our daily life like sharing some stuffs, sharing the towels, using smart phones of some other person, sneezing, coughing, et cetera.
These diseases are common cold, flu which is transferred from one person to another.