Answer:
a land that is raised and flat
Explanation:
Typically, plateau was formed by either Volcanic activity or a Tectonic activity.
Collection of Eruptions from Volcanoes could gradually increase the land elevation overtime, forming the raised and flat structure on the land. Similar process could also be found from the upward movement in the Earth's crust when tectonic plates were colliding with one another.
Currently, Geologist predict that Plateaus make up almost 1/3 of the Earth's surface. They can be found in all continents across the world.
Answer:
Ethical
Explanation:
Ethics defines the correct rules of behavior or conduct necessary during research. The researcher has a moral responsibility to safeguard research participants from any sort of harm.
Four ethical principles to be followed while conducting psychological research:
1. To obtain informed consent.
2. Providing the right to withdraw anytime during the research.
3. Protecting confidentiality and anonymity.
4. To avoid deceptive practices.
If there were no predators they would overpopulate (like us humans have). It would also mean the things that were once predators would die off, leaving only the producers and primary consumers to run the world (so pretty much the vegans/vegetarians and anything that doesn't eat meat, as well as plants).
If dichloromethane is swapped out and ethyl acetate is used in its place, the extracts then obtained would be highly anti-radical and would be more efficient than dichloromethane.
Since "like dissolves like," ethyl acetate is a polar molecule that works well as a solvent to extract the polar caffeine molecules from coffee beans. The ethyl acetate molecules bind to the caffeine molecules, which then move through the bean cells' cell membranes. After all, the ethanol:water (1:1) solvent combination has been demonstrated to be the best for recovering catechins and delivering extracts with the highest antiradical activity.
Dichloromethane is a volatile colourless liquid used as an organic solvent in many industries. One of its main application is that it used to extract caffeine because of its highly effective solvent nature. Because DCM is a non-polar solvent and caffeine is readily soluble in DCM, it can easily be extracted without losing its aroma.
To know more about dichloromethane, refer to the following link:
brainly.com/question/15402012
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