This is very possible becuase the earth orbits, and when it orbits, the sun moves to the other side of the planet, while we have night. when we see the moon at night, we can only see it when the suns reflection hits the moon to make it glow.
They will get an eye condition called xerophthalmia.
The best way to do that is to cook the amount of food that you know you SHOULD eat, not how much you WANT to eat.
If you don't cook more food than you should eat, then you can't eat more than you should.
Answer:
vaccination programs
this is to help reduce the spread of the disease from one person to another at a fast rate
