You’re kidding......right?
Those CONtrails are caused by hot exhaust, which contains lots of water vapor (a by-product of hydrocarbon fuel combustion) cooling down at an altitude and temperature in which the air cannot hold the water vapor as “vapor”.
Clouds appear during the day “out of nowhere” (no fronts or storms around) because the air at ground level containing “X amount of water vapor” heats up from “the sun” warming the ground, the air rises, cools as it rises, and the water vapor in it condenses because the cooler air cannot hold the water vapor it had at ground level (cooler air cannot hold the same amount of water that warmer air can)...as invisible vapor. This is also why clouds form as air moves up a mountain......and why the air on the other side of the mountain range is cooler and drier.
This is like looking at the exhaust or my car in the cold winter.....spewing visible water vapor.....and claiming that I’m adding chemicals to the air...other than the by-products of hydrocarbon fuel combustion, of course.
I know the argument between chemtrail and contrails folks, come on, if that’s your way of writing this off then fine. Since when did contrails from a single plane spread out for 10’s of miles, even 100’s (wide). Look, and the fun and kidding and tinfoil jokes aside, watch the sky in your area for a month, just try it, that’s all I’m asking.