Задание
Read the article and choose the TRUE answers.
What would happen if Earth had two moons?
by Andre Etienne from Quora.com
Our Earth-Moon system is unique in the solar system. The Moon is 1/81 the mass of Earth while most moons are only about 3/10,000 the mass of their planet. The size of the Moon is a major contributing factor to complex life on Earth. It is responsible for the tidal waves, it’s the reason our day is 24 hours long, it gives light for the variety of life forms that live and hunt during the night, and it keeps our planet’s axis tilted at the same angle to give us a constant cycle of seasons. A second moon would change that.
Another moon’s arrival would wreak havoc on Earth. Its gravity would tug on the planet causing absolutely massive tsunamis, earthquakes, and increased volcanic activity. The ash and chemicals raining down would cause a mass extinction on Earth. But after a few weeks, things would start to settle.
Moon 2 would adjust to its new position between the Earth and the Moon. The pull from both bodies would cause land tides and volcanic activity on the new moon; The constant volcanic activity would make Moon 2 smooth and uniform, as well as a beautiful fixture in the night sky.
The Earth would also adjust to its two moons, giving life a chance to arise. But life on a two-mooned Earth would be different.
The combined light from the two moons would make for much brighter nights, and their different orbital periods will mean the Earth would have fewer fully dark nights. This will lead to different kinds of nocturnal beings; nighttime hunters would have an easier time seeing their prey, but the prey would develop better camouflage mechanisms. The need to survive could lead to more cunning and intelligent breeds of nocturnal animals.
Humans would have to adapt to the challenges of this two-mooned Earth. The higher tides created by Moon 2 would make shoreline living almost impossible — the difference between high and low tides would be measured in thousands of feet. Proximity to the water is a necessity for sewage draining and transport of goods, but with higher tides and stronger erosion, humans would have to develop different ways of using the oceans for transfer and travel. The habitable area of Earth, then, would be much smaller.
Eventually, the moons would collide. Their eventual collision would send debris raining through Earth’s atmosphere and lead to another mass extinction. The result would be one moon orbiting the Earth, and life another era of life would be primed to start.
If Earth had two moons, the length of the day would change.
Another moon would initially cause volcanic eruption on Earth.
According to the author, the second moon would have a strange shape.
With 2 moons there would be different animals.
2 moons would finally share the space peacefully.