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vivado [14]
3 years ago
12

After chlorofluorocarbons were banned, which class of chemicals was used in their place?

Geography
1 answer:
harkovskaia [24]3 years ago
3 0

Answer;

Sulfur Dioxide

Explanation:

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The presence of glossopteris leaves and mesosaurus on disconnected continents are strong _______ evidence for continental drift.
almond37 [142]

Fossils.

Early in the 20th century, Alfred Wegener, primarily, established the continental drift theory. According to Wegener, continents are mobile on the surface of the Earth and were previously connected to form a single supercontinent. Scientists did not think that the continents could migrate when Wegener was alive.

In rocks that are the same age but on continents that are currently far apart, ancient fossils of the same species of extinct plants and animals can be found. Wegener claimed that the species had coexisted, but that once they died and become petrified, the lands had separated. According to his theory, the creatures couldn't have crossed the seas.

1. Glossopteris seed fern fossils were too heavy for the wind to carry them that far.

2. Mesosaurus was a reptile that could swim, although it could only do it in freshwater.

3. The terrestrial reptiles Cynognathus and Lystrosaurus were incapable of swimming.

Learn more about continental drift theory here:

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8 0
1 year ago
select the two factors that have the greatest influence on the state (solid or liquid) of each of earth's layers. a. salinity b.
Viefleur [7K]
The two factors, Temperature and Pressure, have the greatest influence on the state of each of Earth's layers.

Hope I helped!
6 0
3 years ago
______people were the first to arrive in North America.
solong [7]
<h2><u>Answer:</u></h2>

Native Americans, otherwise called American Indians, Indigenous Americans and different terms, are the indigenous people groups of the United States, aside from Hawaii. There are more than 500 governmentally perceived clans inside the US, about portion of which are related with Indian reservations.  

The overarching hypothesis recommends that individuals moved from Eurasia crosswise over Beringia, a land connect that associated Siberia to introduce day Alaska amid the Ice Age, and afterward spread southward all through the Americas over the resulting ages

7 0
3 years ago
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The correct answer for the question that is being presented above is this one: "B. a decrease in pressure." At divergent plate boundaries in the ocean, magma rises and melts because of<span> a decrease in pressure. The magma rises and melts as the divergent plate boundaries in the ocean decreased in pressure.</span>

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3 years ago
On the map of the United States shown below, four lines have been drawn and labeled A, B, C, and D
xeze [42]
Mesosphere is the layer after stratosphere, which is after troposphere, as seen from Earth in the direction of Space.

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So we're looking for a line that's closest to 100 km, and this is the shortest line, A.
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3 years ago
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