Irrigation in Mesopotamia
What causes the color to become hot
Many causes ! Alcohol and sedentary life style among others.
what scientific causes something to become putrid
I would say the Meteor that wiped out the prehistoric animal the dinosaur and hunting, a lot of animals are dying out purely because of hunters. Animals such as tigers have become that few that they will gain a bounty, hunters will be given large amounts of money to bring in these animals.
the absence of the gravitational force or field in space causes the astronauts to become weightless
Semen has several different enzymes in it. One of them causes it to become thinner and more watery after a certain period of time. This chemical reaction also causes the semen to become clear.
It is the belief that civilizations occurred prior to the current version of recorded history. These civilizations could have been destroyed from natural or unnatural causes.
The oxytoxic makes the uterus to become hard.
killing them....
you have viriuses
Compression
Freezing