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Dvinal [7]
1 year ago
8

The diversification of grasses has occurred mostly in the last 20 million years. Some scientists have argued that this can be ex

plained by?
Social Studies
1 answer:
lara [203]1 year ago
5 0

The diversification of grasses has occurred mostly in the last 20 million years. Some scientists have argued that this can be explained by a decline in the concentration of carbon dioxide in the atmosphere.

Most of the Earth's surface is covered by grassland biomes, which currently account for up to one-third of net primary production on land. Grasses make up the majority of grassland biomass and plant populations, but other plant groups, especially the Daisy family, are usually as diverse as grasses.

A new landscape was created when grasslands emerged, and grazing mammals like horses, wombats, and capybaras were among the various life forms that co-evolved with this biome and benefited from the substrate that grasses supplied.

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How do you think the presence of so many independent city-states in such close proximity could have contributed to the Renaissan
soldier1979 [14.2K]

Answer:

Renaissance in Italy

Explanation:

The city-states were well established during the later middle ages. Some often city-states were Florence, Naples, Genoa, Milan, Rome and Venice. The city-states being in the coastal region became centres for trade which helped in bringing ideas and goods. Florence became the centre of the Renaissance. The city-states invited painters and sculptures where they created their masterpieces. Medici family were bankers who assisted in building Florence as a centre of art and culture. They became patrons for the painters, architects by spending their wealth to support them.  

4 0
2 years ago
When did mlk give his i have a dream speech?
igor_vitrenko [27]
Martin Luther King Jr gave his I Have a Dream speech on August 28th 1963
5 0
2 years ago
The largest number of eighteenth-century European immigrants to colonial America were the Protestant __________ .
Marina86 [1]

Answer:

Scots-Irish Protestants

Explanation:

The Scots-Irish Protestants were the largest number of European immigrants to colonial America in the 18th and 19th centuries. Around 200,000 Scots-Irish Protestant people migrated from Europe to American in that era. They settled around Pittsburgh, New York, and Philadelphia, whereas the first group arrived and settled in New England.

5 0
3 years ago
U.s foreign policy frequently encourages nations of the world to adopt democratic forms of government with similar human right s
Nezavi [6.7K]

The correct answer is C) China currently holds trillions in US debt.

<em>The reason might the US for treating China differently is that China currently holds trillions in US debt.</em>

US foreign policy frequently encourages nations of the world to adopt democratic forms of government with similar human right standards. The reason might the US for treating China differently is that China currently holds trillions in US debt.

Until January 2019, the United States debt to China was $1.13 trillion. China has the most United States debt held by a foreign country. That represents a disadvantage to the US finances, and if we added the trade war that both countries are into, the situation for the US can get more complex. So that is why the United States needs to have some concessions with China. The reason might the US for treating China differently is that China currently holds trillions in US debt.

8 0
3 years ago
Read 2 more answers
Social isolation and loneliness as risk factors for the progression of frailty: the English Longitudinal Study of Ageing
alina1380 [7]

Loneliness and social isolation have been linked with premature mortality and with functional decline in older people.

We found that high levels of loneliness, but not of social isolation, increased the risk of becoming physically frail.

Neither loneliness nor social isolation were associated with the rate of change in a more broadly defined frailty index.

Loneliness

Loneliness is a subjective feeling of dissatisfaction with one’s social relationships. Both social isolation and loneliness have been linked with increased mortality [2–4], incident heart disease [5, 6] and functional decline [7, 8]. Social isolation and loneliness tend to be correlated, albeit weakly .

Social isolation :

Social relationships are important for health . Most such research has focused on social isolation or loneliness. Social isolation is defined objectively using criteria such as having few contacts, little involvement in social activities and living alone.

Frailty :

Frailty is a clinical syndrome whose main feature is heightened vulnerability to stressors due to lowered physiological reserves, decline in the ability to maintain homeostasis and impairments in multiple systems

A frailty index score reflects the proportion of potential deficits present  The phenotype model defines frailty in physical terms, whereas the cumulative deficit model uses a broader definition of frailty.

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8 0
2 years ago
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