Because if no one could reason no one could make the invention we have today
In addition to abolishing slavery and prohibiting involuntary servitude, except as a punishment for crime, the Thirteenth Amendment nullified the Fugitive Slave Clause and the Three-Fifths Compromise.
The researcher might want to quasi-experimental design if the research topic is one whereby there is need to establish a cause & effect relationship between variables.
<h3>What is a
quasi-experimental design?</h3>
In research, the quasi-experimental design is a research design that aim to establish a cause & effect relationship between the topic's independent and dependent variable.
In conclusion, the researcher might want to quasi-experimental design if the research topic is one whereby there is need to establish a cause & effect relationship between variables.
Read more about quasi-experimental design
<em>brainly.com/question/14642394</em>
Answer: c. Producers.
Explanation:
A hydrothermal source is a crack in the earth through which water flows, was heated under the surface by magma. Heat causes water to flow precipitously to the surface. If the crack is on the earth, it is called Geyser, and if it is underwater, it is called fumarole.
Producers are those organisms that synthesize organic matter from inorganic matter, in marine ecosystems marine plants are the primary producers.
For producers to acquire energy, sunlight is necessary, so it was considered impossible for producers to exist in deep waters in the oceans. However, around the fumaroles ecosystems have been found that subsist only with minerals that come from the expelled water, such as sulfur.
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