Explain the scientific truth contained in the following weather proverbs (speed `` 1

1. On rainy days, the air is rich in water vapor and high in humidity, so there are small water droplets on the wings of insects, which are heavier than usual and fly abnormally, including finches. Birds that prey on insects fly very low. On the contrary, they fly high on sunny days.

2. Domestic chickens stay late, mainly because of rain. (Tian Xing)

* The chickens return early and the weather is fine; The chicken came back late, and the rain is coming. (Guangdong)

Domestic chickens like to be dry. Before it rains, the water vapor is thick, and the chicken cage is particularly humid and sultry, so they don't want to enter the cage early.

When ants feel the relative humidity in the air, they will move to a higher place to avoid being submerged, which indicates that it is going to rain.

Every time the weather gets worse, the water vapor in the air increases and the air pressure decreases. Too much steam makes the soil wet again, so the ant nest is particularly wet. Because the air pressure drops and the dirty gas accumulated in the dirt escapes, it is difficult for ants to live in their nests. Among them, the yellow silk ant is busy moving. There is also a long-legged black ant, which will move the soil from the hole to the ground and build a nest around the hole. The higher the nest is built, the heavier the rain.