How were natural disasters linked with the Mandate of Heaven?

Natural disasters were seen as a sign that the current rulers lost the favor of the gods.
Natural disasters were seen as a sign that the current rulers were displeased with the people.
Natural disasters were seen as a sign that more people needed to make sacrifices to the gods.
Natural disasters were seen as a warning that China would be invaded by outsiders.

Question

How were natural disasters linked with the Mandate of Heaven?

 Natural disasters were seen as a sign that the current rulers lost the favor of the gods.
 Natural disasters were seen as a sign that the current rulers were displeased with the people.
 Natural disasters were seen as a sign that more people needed to make sacrifices to the gods.
 Natural disasters were seen as a warning that China would be invaded by outsiders.

nurali · Answer

i think Natural disasters were seen as a sign that the current rulers lost the favor of the gods.