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Alekssandra [29.7K]
3 years ago
11

How do scientists know about the levels of carbon in our atmosphere now and in the past?

Geography
1 answer:
lukranit [14]3 years ago
7 0

Answer:

The Earth also gives us clues about the levels of greenhouse gases that existed in the past. For example, ancient air bubbles trapped deep in the ice of Greenland and Antarctica reveal how much carbon dioxide was present long ago.

Explanation:I learn it in 8 grade.

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Why do you think the French allowed Napoleon to proclaim himself emperor? Explain your reasoning.
Phantasy [73]

Answer:

Napoleon's motivations for being crowned were to gain prestige in international royalist and Catholic circles and to lay the foundation for a future dynasty.

Explanation:

Napoleon's elevation to emperor was overwhelmingly approved by the French citizens in the French constitutional referendum of 1804. Among Napoleon's motivations for being crowned were to gain prestige in international royalist and Catholic circles and to lay the foundation for a future dynasty.

4 0
3 years ago
Please help me I'll give brainiest!
Alex73 [517]

Answer:

From top to bottom: Midwest, West Coast, Southwest, Northwest.

Explanation:

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4 0
3 years ago
Which of the following societies has the most rigid hierarchy?
solong [7]

Answer: In Medieval Europe, knights pledged loyalty to vassals, who in turn pledged theirs to powerful lords, and serfs labored in the fields.

Explanation:

A rigid hierarchy refers to one where people who are born into a certain position in life, find it quite hard to move from it or rather one where there are different social classes and people had to be classified in one class for the system to work.

The system during medieval times was much like this. Social classes existed that determined a person's worth in society such as the knights, vassals, Lords and Royals. There was also the serfs who were considered the lowest in the hierarchy.

7 0
2 years ago
What are the main reasons and sources of the increased CO2 levels?
Dmitry [639]
The main sources are humans which is why it is stated that the global warming is man made. The levels have increased beyond all measure, increasing since the 1950s by a 100 CO2 parts per million, and it keeps increasing by 2ppm on a yearly basis. The statistics from the industrial revolution era are not much different and show how much we've increased the CO2 in modern times.
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3 years ago
Find the mean, median and mood 5,10,12,4,6,11,13,5
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median:8

mode:5

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3 years ago
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