The average surface temperature on Earth before life was present was about 290°C.
Answer the following statement true (T) or false (F)
True
Environmental & Atmospheric Sciences
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Ozone is only toxic in the form that it takes in the stratosphere
Indicate whether the statement is true or false
Environmental & Atmospheric Sciences
Typically, what percentage of the air's volume near the Earth's surface is water vapour?
A. less than 4% B. close to 10% C. about 21% D. about 78%
Environmental & Atmospheric Sciences
The force on an electron moving in a magnetic field will be the largest when its direction is
A) the same as the magnetic field direction. B) exactly opposite to the magnetic field direction. C) perpendicular to the magnetic field direction. D) at an angle other than 90° to the magnetic field direction. E) none of the above
Environmental & Atmospheric Sciences
The lowest high tides are ________ tides
A) neap B) spring C) ebb D) flood E) red
Environmental & Atmospheric Sciences