Answer:There are 3 primary methods and those are
Radiation Measurement.
Stratigraphic Superposition.
The Fossil Record.
Explanation:
The sun is a true substance that gives off energy.
Answer: its D ! The arrows to the right of Earth should point up.
Explanation:
i took quiz
According to Clausius-Clayperon equation,

is the vapor pressure at boiling point = 760 torr
is the vapor pressure at T_{2} =638.43 torr
Temperature
Δ
Plugging in the values, we get

ln

Therefore, the boiling point of octane = 389 K - 273 = 