Metamorphism is the addition of heat and/or pressure to existing rocks, which causes them to change physically and/or chemically so that they become a new rock. Metamorphic rocks may change so much that they may not resemble the original rock.
Answer:
Explanation:
There are two dominant theories:
The inside-out model proposes that the Earth formed with trace amounts of water structurally bonded to the minerals in the mantle. This water makes its way to the Earth’s surface through volcanic processes.
The outside-in model proposes that the Earth formed without water, which came with other volatiles from the meteorites or comets that bombarded the young planet. This water was probably mixed into the upper layers of the Earth and was later brought to the surface through volcanism.
Green house gasses release during the combustion of fossil fuels - true
Fossil fuels are: coal and petroleum. When they are combusted they produce around 21.3 billion tonnes of carbon dioxide (CO2) per year, but it is estimated that natural processes can only absorb about half of that amount, CO2 causes radiative forcing and thanks to CO2 the average surface temperature of the Earth rises. This phenomena of temperaturę rising causes hurricanes, tornadoes and tsunami and, of course, the level of the sees and oceans is also rising because glaciers are melting.
The correct answer for this question is this one:
<span>The impact on the christmas island crab population of a very dry season is that their spawning will be lesser than compared to the previous years. The effect of the climate change has a greater one with the crab population.</span>
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The correct answer is - Stream velocity, channel width, and depth all increase.
When a stream is faced with a sudden increase of water, than the stream is starting to increase in velocity. The velocity is becoming bigger in the lower part of the stream. As the velocity increases, it is followed by an increase in width of the stream because it starts to flood the surrounding area, and because of the much bigger amount of water it also experiences increase in depth.
