<span>C. waves can only interfere destructively. </span>
To solve this problem we will apply the concepts related to the calculation of power, from the two electrical forms:


Here,
V = Voltage
I = Current
R= Resistance
P = Power
PART A)

Replacing,


Resistance of bulb is 
PART B)



The bulb will draw 1.25A current
Explanation:
A gas at higher temperature is able to gain more heat from the environment/surroundings and has more kinetic energy to diffuse at a faster rate.
Hence a temperature at -20°C is more ideal.
Molar mass of H2S = 34.07g/mol
Molar mass of HCl = 36.45g/mol
Since H2S has a smaller molar mass, the same number of moles of H2S gas will diffuse faster as compared to the same number of moles of HCl gas.
Hence the answer is Hydrogen sulfide at -20°C. (D)
1: Boiling Water
2: Ice Melting
3: Hot Air Balloon
4: Frozen Material Thawing
5: Radiator
6: Steaming cup of hot coffee
7: Campfire
8: Putting wet shoes on floor vent
You could get sick by breathing throw your mouth and you have a less chance of getting sick by breathing throw your nose.