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Answer:
A system is a group of interacting or interrelated entities that form a unified whole. A system, surrounded and influenced by its environment, is described by its boundaries, structure and purpose and expressed in its functioning. Systems are the subjects of study of systems theory
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The Columbian Exchange greatly affected almost every society on earth, bringing destructive diseases that depopulated many cultures, and also circulating a wide variety of new crops and livestock that, in the long term, increased rather than diminished the world human population
Answer:
The Moon's phases repeat every 29.5 days, but it's orbit around the Earth only takes 27.
Explanation:
Why? In that time, as our Moon moves around Earth, the Earth also moves around the Sun. Our Moon must travel a little farther in its path to make up for the added distance and complete its phase cycle.
The action that leads to photochemical smog and acid rain is due to the concentration of secondary pollutants.
<h3>What are the causes of photochemical smog?</h3>
Photochemical smog is made as a result of the action of the sunlight reaction with nitrogen oxides and also in the presence of at least one volatile organic compound (VOC) that is seen in the atmosphere.
Therefore, The action that leads to photochemical smog and acid rain is due to the concentration of secondary pollutants
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Answer:</u></h2>
The correct option is C (Comanche)
<h3><u>Explanation:</u></h3>
Ethnologue records 61 dialects as having a place with the Uto-Aztecan stock. A few groups of Uto-Aztecan dialects are or were spoken in the western piece of the United States. These incorporate Comanche, Shoshoni, Tubatubal, Hopi and Tohono O'odham.
The Comanche are a Native American country from the Great Plains whose memorable region comprised of the majority of present-day northwestern Texas and contiguous territories in eastern New Mexico, southeastern Colorado, southwestern Kansas, western Oklahoma, and northern Chihuahua.
