A cyclic change in the earth system repeats the same steps over and over, though not necessarily with the same results or at the same rate.
The Earth's climate cycles across a wide range of time scales, from years to decades to centuries to millennia. Different physical processes can start cycles at different scales. All of these layered systems and cycles working in concert determine the climate over any particular period.
Scientists examine Earth's cycles in an effort to understand how our world functions. Our planet's climates can vary as a result of modifications to Earth's cycles. Our understanding of how humans are influencing these cycles and how that can transform the world will grow as we learn more about them.
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(-3, -2) I believe it should be
Peristalsis is the physical movement or pushing of food along the digestive tract.
Answer:
Explanation:
A second cholera pandemic reached Russia (see Cholera Riots), Hungary (about 100,000 deaths) and Germany in 1831; it killed 130,000 people in Egypt that year.[12] In 1832 it reached London and the United Kingdom (where more than 55,000 people died)[13] and Paris. In London, the disease claimed 6,536 victims and came to be known as "King Cholera"; in Paris, 20,000 died (of a population of 650,000), and total deaths in France amounted to 100,000.[14] In 1833, a cholera epidemic killed many Pomo people which were a Native American tribe. The epidemic reached Quebec, Ontario, Nova Scotia[15] and New York in the same year, and the Pacific coast of North America by 1834. In the center of the country[clarification needed], it spread through the cities linked by the rivers and steamboat traffic.