Answer:
The outer core is the third layer of the Earth. It is the only liquid layer, and is mainly made up of the metals iron and nickel, as well as small amounts of other substances. ... These powerful currents cause lines of invisible force to stretch around the Earth and thousands of miles into space, creating a magnetic field.
Your nervous system quickly responds to the threat and sends a signal to your brain which causes your muscles/ body to react.
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The emission of N2O from the landfill site is called denitrification and it is caused by the action of denitrifying bacteria.
<h3>What is dissolved oxygen?</h3>
The term dissolved oxygen refers to the amount of oxygen that is present in a water body. Now, we know that the addition of organic matter into water requires oxygen to break it own thus the dissolved oxygen content will go down in response to the added organic load.
The process that leads to the emission of N2O from the landfill site is called denitrification and it is caused by the action of denitrifying bacteria.
Learn more about denitrification:brainly.com/question/13624886?
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The correct answer is option D, that is, surface mines allow humans to obtain useful minerals.
Surface mining comprising open-pit mining, strip mining, and mountaintop removal mining refers to a wide classification of mining in which rock and soil superimposing the mineral deposit, are withdrawn, in comparison to the underground mining, in which the covering rock is left in location, and the mineral is withdrawn via tunnels of shafts.
Answer:
Yes
Explanation:
If u want to equate that with “luck” feel free. There are any number of points in natural history where any species, not just us, could have turned out very differently.
Had the climate not changed in Africa…. Forcing our distant relatives from the forested areas into the plains… We might very well still number among the “great apes” rather than the genus “Homo”.
There would be dozens of simialar “what ifs” in our past. The entire spectrum of life on Earth might have turned out very differently indeed had the Permian Extinction not happened…. Those life-forms that populated the Earth prior to this event were very different than those that evolved from the few survivors. (Over 90% of all life on Earth was presumed to have been killed off.)
