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How do exhaust fumes from cars affect the environment?
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O A. They cause a rapid decrease in temperatures leading to rain.
O B. They release harmful. greenhouse gases into the atmosphere.
OC.
They decontaminate natural waterbodies, such as lakes and rivers.
OD.
They circulate harmful disease-carrying organisms in the air.

The correct answer is B. They release harmful greenhouse gases into the atmosphere.

Explanation:

Exhaust fumes from cars are composed of different gases such as nitrogen, water vapor, nitrous oxide, methane, and carbon dioxide that go to the atmosphere after being released and contribute to the greenhouse effect. Indeed, gases such as carbon dioxide, water vapor, and nitrous oxide are considered greenhouse gases, this means these gases trap part of the radiation from Sun and stop this from being released, which increases the temperature on Earth; this causes higher than normal temperatures and has multiple effects on natural environments. Thus, exhaust fumes from cars affect the environment because "They release harmful greenhouse gases into the atmosphere".

B. They release harmful greenhouse gases into the atmosphere.

Explanation:

early human migrations are the earliest migrations and expansions of archaic and modern humans across continents and are believed to have begun approximately 2 million years ago with the out of africa migration of homo erectus. this initial migration was followed by other archaic humans including h. heidelbergensis, which lived around 500,000 years ago and was the likely ancestor of both denisovans and neanderthals. early hominids were said to have "crossed land bridges that were eventually covered in water" .

within africa, homo sapiens dispersed around the time of its speciation, roughly 300,000 years ago.the "recent african origin" paradigm suggests that the anatomically modern humans outside of africa descend from a population of homo sapiens migrating from east africa roughly 70,000 years ago and spreading along the southern coast of asia and to oceania before 50,000 years ago. modern humans spread across europe about 40,000 years ago.

the migrating modern human populations are known to have interbred with local varieties of archaic humans, so that contemporary human populations are descended in small part (below 10% contribution) from regional varieties of archaic humans.

after the last glacial maximum, north eurasian populations migrated to the americas about 20,000 years ago. northern eurasia was peopled after 12,000 years ago, in the beginning holocene. arctic canada and greenland were reached by the paleo-eskimo expansion around 4,000 years ago. finally, polynesia was peopled after 2,000 years ago, by the austronesian expansion.

answer: they arrived in new york.