Answer:
<h3>Questioned what might happen if CFCs rose into higher altitudes and stayed there for a longer period of time.</h3>
Explanation:
- Mario Molina noticed that Chlorofluorocarbons (CFCs) did not breakdown in lower atmospheric conditions unlike other chemicals released into the air. He observed that CHCs rose to higher altitudes where solar radiation were stronger.
- Through this observation, he questioned what might happen if CFCs rose into higher altitudes and stayed there for a longer period of time. This question led to the finding that the chlorine present in CFCs depleted the ozone layer which protects the earth from direct solar radiation.
- It helped in understanding the affects of CFCs to the environment and ozone layer which subsequently led to the ban and limitation on the use of CFCs altogether.
Answer:
The agrarian nature of medieval European economies and their reliance on coerced labor.
Explanation:
The passage is a letter from King Edward III of England which was written in the year 1351. He stated in the letter that the nation was just recovering from a pestilence that had debilitating effects. The farmers who were mostly slaves were refusing to work unless they were given increased wages.
King Edward addressed this problem which caused "grave inconveniences" by stating in his letter that all slaves must be forced to return to their masters and that they were to be paid the wages agreed upon five years ago. He also stated that whoever refused to abide by this rule was to be confined to jail.
Explanation:
The greatest economic sector for water demand and use is in agriculture.
The answers should be in the reading, that’s why it says, “read the..answer the following questions..answers are in the lesson.”
