Answer: c. Later Copernican Revolution (about 1609-1630)
Explanation:
During the Middle Ages, it was believed that the Earth remained motionless, occupying the center of a universe subject to uniform circular motion where Earth was the only world. All this because the only accepted idea was that of Ptolemy.
Until the Polish astronomer Nicolaus Copernicus proposed that the Earth annually orbits the Sun and rotates once a day on its own axis. He also dared to affirm that the other planets also orbited the Sun as a fixed point. This meant the Earth was no longer unique, nor did it occupy the center of the known universe.
It was on this main idea that the Copernican revolution was based, by changing the Earth for the Sun as the center of the Universe, bringing with it a paradigm shift from the ptolemaic model of the heavens (the stationary Earth in the center of the universe) to the heliocentric model with the Sun in the center of the solar system.
These ideas were published by Copernicus in <em>De revolutionibus orbium coelestium.</em>
The architecture of a kelp forest depends on its physical structure, which influences the species that occupy the forests. Kelp forests usually include three types of kelp and two types of algae:
1. Prostrate kelps lie near and along the sea floor and form the lowest level of kelps
2. Stipitate kelps are above the prostrate kelps upto a few meters above the seafloor.
3. The Canopy kelps include the largest species of kelp and often extends to the top of the ocean surface.
4. Coralline algae directly and often extensively cover geologic substrate i.e the sea floor.
5. The benthic assemblage is composed of other algal species.
Answer: The order of the stages of primary succession as seen at glacier bay are Pioneer, Dryas, Alder, and Spruce stages.
Explanation:
Primary succession is the process that plant species use to colonize a sterile habitat. The first living organisms, the pioneer species are hardy species, for example moss that are able to survive in any habitat. These change the unfavorable environment (lava, rock) to soil.
In Glacier bay, Alaska, the dryas came next, providing the soil with Nitrogen, then Alders which maintains the nitrogen content in the soil. This is followed by spruce trees which grow in the the shade of the alder
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Answer:
China was politically united and had a good agriculture base before the advent of foreigners. The influence of powerful western nations was ruining the Chinese economy. The Chinese resentment grew not only against the foreigners but also against the Manchu dynasty as they were held responsible for it. In 1912 the republic of china was formed by the nationalist to end the rule of 4000-year-old dynastic rule.
Explanation:
Answer:
brain drain is the answer for this question
