Totally useless, totally wrong, yet presented with absolute precision, confidence, detail and certainty.
b) "What would happen if the earth's moon was suddenly moved to 1 meter above the earth's surface."

It began to talk at length about the moon's gravity stripping trees and dirt from the ground and lifting them up to its surface, sucking up all the air, tearing apart cities and lifting them into the sky.
Total nonsense because, the surface gravity of earth is far higher than the surface gravity of the moon. And it's like 1 meter. It's not like a black hole 1km above the earth's surface.
How the heck could an object with a weak gravitational field strip another object with a strong gravitational field. It's ridiculous.
Totally useless, totally wrong, yet presented with absolute precision, confidence, detail and certainty.

I think that it was wrong, but in the opposite direction.
My first thought was about ocean tides. If the moon at ~240,000 miles creates tides of 3 feet in mid-ocean up to 6-30 feet coastal, the moon at a much closer distance will create much much much higher tides, as the pull of gravity increases as the cube of the distance (between centers of mass). Those tides would scour the land far inland. Pikes Peak and Mt. Everest would probably be okay, the rest not so much.

Second thought was that tidal forces would fracture the moon into pieces which would rain down all over the Earth.

I read a science fiction trilogy about an asteroid that has headed to the Earth, we send rockets up to explode it into tiny pieces. Which mostly stayed on the same trajectory and then entered the atmosphere and converted all that widespread kinetic energy to heat and heated up the atmosphere to hundreds of degrees. Killing every living thing.
The last 2 1/2 books followed the few hundred humans who had luckily been in space stations in orbit.

But, anyway, here's a simulation video: YouTube: What If the Moon Orbited Just 1 Meter From Earth? (Sandbox Mode)