Answer:
B
Explanation:
I guess the answer should be B. Factories produce lots of smoke that when go into contact with the sun, turns into ozone.
Then, ozone is a greenhouse gas.
Answer:the first one is external stimulus
And the second one is migration
Explanation:
The answer is Tony Zale. I hope this helps.
Answer:
BIRTH RATE: The number of people being born per year
DEATH RATE: The number of people dying per year
TOTAL FERTILITY RATE: The fertility rate at a given age is the number of children born alive to women of that age during the year as a proportion of the average annual population of women of the same age.
INFANT MORTALITY RATE: The number of infants dying each year
LIFE EXPECTANCY: the average period that a person may expect to live
Explanation: