According to scientific data on climate change, what levels have risen by 30% over the past 200 years?
a. ozone
b. argon
c. carbon dioxide
d. krypton

Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car

Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.