It allows them to study and analyze the species.
Answer: greenhouse gases
Explanation:they get trapped at the troposphere but also travel to the stratosphere due to change in air pressure with height.
Answer: yes
Explanation: well <u>Chicken pox</u> is a <u>virus</u> that causes an itchy rash but 1995
A vaccine for chicken pox was developed in 1995 Vaccines are more effective on ethnicities that are highly susceptible to a disease.