What kinds of topics do we study in life science?
During the study of the life sciences, you will study cell biology, genetics, molecular biology, botany, microbiology, zoology, evolution, ecology, and physiology.
Has any comet hit Earth?
The Chelyabinsk meteor was estimated to have caused over $30 million in damage. It is the largest recorded object to have encountered the Earth since the 1908 Tunguska event.
What happens if a comet hits earth?
If the comet is 10 kilometers across or larger (that is, if the impact carries an energy of more than about 100 million megatons), the resulting global environmental damage will be so extensive that it will lead to a mass extinction, in which most life forms die.
Would we die if the moon exploded?
It is pretty obvious: Everyone Dies. First, the explosion of the moon will produce an enormous amount of debris. A significant amount of them will rain on Earth at high speeds and the impacs will be tremendous. Each impact will cause shock waves that can wipe out life in millions.
What would happen if we nuked the moon?
The explosion would also likely create a shotgun-like blast of moon debris, as lower gravity makes it easier for moon rocks and dust to easily escape the moon’s gravity. This would be ejected into space, but also strike Earth, creating micrometeor showers visible in the night sky.
What would happen if an asteroid hit Earth?
With an asteroid hitting the Earth; dust and smoke rising in the atmosphere prevents sunlight from reaching our world and causes the total temperature to drop. This event can lead to the death of many living things. If an asteroid the size of an apartment hits Earth, this blow could possibly destroy a small city.
Can we stop an asteroid?
No attempts are made to stop the asteroid, however, people desperately search for bunkers to hide in before the comet strikes.
Do we need the moon?
The brightest and largest object in our night sky, the Moon makes Earth a more livable planet by moderating our home planet’s wobble on its axis, leading to a relatively stable climate. It also causes tides, creating a rhythm that has guided humans for thousands of years.
What would happen if we lost the moon?
It is the pull of the Moon’s gravity on the Earth that holds our planet in place. Without the Moon stabilising our tilt, it is possible that the Earth’s tilt could vary wildly. It would move from no tilt (which means no seasons) to a large tilt (which means extreme weather and even ice ages).
What are some examples of earth science?
These include the study of the water on and within the ground (hydrology), the glaciers and ice caps (glaciology), the oceans (oceanography), the atmosphere and its phenomena (meteorology), and the world’s climates (climatology).
Can a comet collide with Earth?
NASA knows of no asteroid or comet currently on a collision course with Earth, so the probability of a major collision is quite small. In fact, as best as we can tell, no large object is likely to strike the Earth any time in the next several hundred years.
What if the Earth stopped spinning?
If the Earth were to stop spinning on its axis, gradually the oceans would migrate towards the poles from the equator. You could travel around the Earth on the equator and stay entirely on dry land—ignoring the freezing cold on the night side, and the searing heat on the day side.
What are the 4 types of earth science?
Geology, oceanography, meteorology, and astronomy are the four main branches of Earth science.
Which comet will hit Earth?