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Anvisha [2.4K]
1 year ago
8

what is a mass extinction? what is a mass extinction? an event that causes the extinction of a large fraction of earth's species

an extinction caused by the impact of a massive asteroid or comet an event that causes most, but not all, of the population of various species to die an event in which the largest of earth's species go extinct
Biology
1 answer:
sineoko [7]1 year ago
8 0

A mass extinction event occurs when a species disappears far more quickly than it is replaced. This is typically understood as the loss of around 75% of all species over a "short" period of geological time, or fewer than 2.8 million years.

An enormous number of species were wiped out by a harsh, worldwide, swift, and selective event is mass extinction. According to marine fossils, at least 75% of all species are thought to have become extinct. The most recent mass extinction is the Cretaceous-Paleogene extinction event, which is also the only one that can be proven to have been caused by a significant asteroid impact. All non-avian dinosaur species, making up about 76 percent of all species on the earth, perished during mass extinction. The Chicxulub asteroid impact in what is now Mexico, which occurred 66 million years ago, caused an ecosystem collapse that resulted in the extinction of the dinosaurs and >75% of all land and sea species as well as the macroevolution of mammals.

Learn more about mass extinction

brainly.com/question/11872946

#SPJ4

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water molecules evaporate from a lake near the equator and rise into the atmosphere, as shown in the diagram below. as the molec
valentinak56 [21]

<u>Condensation</u> is the next step in the water cycle that is most likely to happen next as water molecules evaporate from a lake near the equator and rise into the atmosphere, as shown in the diagram below. and as the molecules travel away from the equator.

Explanation:

As the warmer air mass rises into the upper atmosphere, at the equator, it begins to cool because temperatures drop with altitude. The relative humidity of the air mass increases until it reachesdew point. The water vapor begins to condense into water droplets.

This air mass begins moving towards the poles (away from the equator) bringing with it clouds (condensed water vapor) that precipitate later on. This air mass begins to sinks because it has become denser with a decrease in temperature. As it sinks it replaces the air mass moving to the equator. The air rushing to the equator is  replacing the rising warm air mass at the equator. This cycle continues.

Learn More:

For more on the water cycle check out;

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