Answer:
4500 years old
Explanation:
Line up 50 to the graph on the y axis and it gives a x value of 4500
Around 1800 (plus or minus about 5 years) is when it was estimated that the world's population had reached 1 billion.
We are more intellegent than adults
Answer:
So the wavelength of light is 1015.7 nm
Explanation:
From Wein's displacement law, we can write the following formula;
here,
is the wavelength of maximum radiation in meters
T is the absolute temperature (in Kelvin) for maximum radiation
K is the constant has a value of 
Given here, T = 2853 K
And we need to find 
Putting the values in formula



Determine the be location
Explanation: