The correct answer here is that lowers the activation energy of chemical reactions - A.
By doing this, it essentially creates an environment where a chemical reaction can happen faster because it doesn't need as much energy to actually take place - for this reason it also happens more often as a lower energy treshold is usually reached faster than a higher one.
Answer:
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Explanation:
The precursor to Black History Month was created in 1926 in the United States, when historian Carter G. Woodson and the Association for the Study of Negro Life and History announced the second week of February to be "Negro History Week".
Also called: African-American History Month
Significance: Celebration of the African diaspora
Observed by: United States, Canada, United K
Date: February (US and Canada); October
Answer:
Individual settlers
Explanation:
Economic development is the growth of the standard of living of a nations people from a low-income (poor) economy to a high-income (rich) economy. In essence, When the local quality of life is improved, there is more economic development. When social scientists study economic development, they look at a lot of things, which includes below.
Using these ideas, Rostow penned his classic "Stages of Economic Growth" in 1960, which presented five steps through which all countries must pass to become developed:
1) traditional society
2) preconditions to take-off
3) take-off
4) drive to maturity
5) age of high mass consumption.
The individual settlers are individuals who first pertake in the economy.
They invest a little, cultivate a little and the the small income is being made.
Answer:
The accomplishments of the Lewis and Clark Expedition were extensive. It altered the imperial struggle for the control of North America, particularity in the Pacific Northwest. It strengthened the U.S. claim to the areas now known as the states of Oregon and Washington.
Explanation:
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By providing firearms amongst the trade goods, Europeans increased warfare and political instability in West Africa. Some states, such as Asante and Dahomey, grew powerful and wealthy as a result.