The correct answer is - False.
The surface runoff, in its natural form, is not a pollution source by any means. When there's heavy rains, once the soil is saturated with water, the water stars to move on its surface, downhill, thus making short-lasting streams of rain water coming down towards the lower parts.
The surface runoff is a big factor in the soil erosion, deposition of sediments, but also causing floods that are very dangerous, especially because they happen in a very short space of time.
The answer to the following question is true.
Antarctica.
Pangaea.
North America.
About 260 million years ago, Earth's continents pushed together to form the supercontinent called Pangaea.
Many people have listened of Pangaea, the supercontinent that included all continents on Earth and started to break up about 175 million years ago. But before Pangaea, Earth's landmasses pulled apart and smashed back together to form supercontinents continually. Pangea, also spelled Pangaea, in early geologic time, a supercontinent that included almost all the landmasses on Earth.
Scientists believe that Pangea busted apart for the same reason that the plates are moving today. The movement is compelled by the convection currents that move over in the upper zone of the mantle. This action in the mantle causes the plates to move gradually across the surface of the Earth. Pangea was encircled by a global ocean called Panthalassa, and it was totally constructed by the Early Permian Epoch (some 299 million to about 273 million years ago).
Pangaea Proxima (also called Pangaea Ultima, Neopangaea, and Pangaea II) is a potential future supercontinent configuration. Consistent with the supercontinent cycle, Pangaea Proxima could happen within the next 200 million years.
Although so-called spreading centers (linear boundaries between diverging plates on the sea floor characterized by rising magma) have been shown to exist, an description of how mantle convection actually works remains elusive to this day. Everyday geology has shown that Pangea did actually exist.
To learn more about Pangaea, refer
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whats the question though?
The trip around South Americad was impractical as a trade route. The route was way too risky and a very long distance to sail over water.
The Big Bang Theory is a widely accepted scientific explanation for the origin of the universe.
↪ According to this theory, the universe began as a singularity—an infinitely dense and hot point—in an event known as the Big Bang. Around 13.8 billion years ago, this singularity began to expand rapidly, resulting in the formation of all matter, energy, space, and time.
As the universe expanded and cooled, subatomic particles like protons, neutrons, and electrons began to form. These particles eventually combined to create atoms, which in turn formed molecules. Over billions of years, gravity led to the clumping of matter, giving rise to galaxies, stars, and planetary systems.
One of the key pieces of evidence supporting the Big Bang Theory is the observed cosmic microwave background radiation—a faint glow of radiation that fills the universe. This radiation is a remnant of the initial moments after the Big Bang and provides valuable insights into the universe's early conditions.
Additionally, the abundance of light elements like hydrogen and helium in the universe also aligns with the predictions of the Big Bang Theory. As the universe expanded and cooled, the conditions became suitable for the formation of these elements.
While the Big Bang Theory provides a comprehensive explanation for the universe's origin and early evolution, there are still questions that remain unanswered, such as the nature of dark matter and dark energy, which together make up most of the universe's content.
In summary, the Big Bang Theory posits that the universe began as a singularity and has been expanding and evolving ever since. This theory has garnered substantial evidence and support from observations and experiments, offering a compelling narrative for the origin and development of our universe.