Answer: Paper
Explanation: It is a insulator
Electrons carry a negative charge.
Answer:
The first one is Earths Tilt on its axis
Answer:

Explanation:
The peak wavelength of the spectral distribution can be found by using Wien's displacement law:

where
is Wien's displacement constant
T is the absolute temperature
For the cosmic background radiation, the temperature is
T = 2.7 K
So, the corresponding peak wavelength is
