Answer: 
Explanation:
Using Weins displacement law:
where 
= wavelength = 
b = constant =
T = Temperature in Kelvin = ?
Putting the values we get:
Thus the temperature of the blackbody will be
I would say D. Fossil fuels must be burned to release their energy.
Answer:
We know that 20% of 400 liters is 80 liters.
so 20 is 5 divided by 100 so divided 400 by 5 and its 80
Answer: "Over the last 50 years, while energy consumption grew substantially, the world undertook a transition in its usage of fossil fuels, from solids (coal) to liquids (oil) to gases (natural gas)." "Meanwhile, the share of oil declined as well, from 40% of energy consumption in 1965 to 33% in 2016."
Explanation: Hope this helps :)
