Answer:
The US wanted to find out how communism was spreading so fast
Explanation:
The US knew how the USSR had become a super power, and they didn't care how the citizens were being treated. The threat of a nuclear attack was on the minds of many, but the US's main goal during the Cold War was to prevent communism from spreading, so using intelligence agents to find out how it was spreading is the best answer.
Hi! The reaction is the following one:
2Al + 3CuCl₂ → 2AlCl₃ + 3Cu
So if you want to know the grams of copper (II) chloride needed (you can't react the copper metal with aluminum metal. It should be the copper (II) chloride), you should use the following conversion factor, using the molar masses of the reagents:
So, the amount of CuCl₂ needed to react an entire 35-gram sample of aluminum would be 261,62 g CuCl2
Answer:
Option (D)
Explanation:
The seafloor spreading refer to the condition where the lithospheric plates move away from one another. This results in the addition of new materials along the mid oceanic ridge. If this continues at a greater rate in comparison to the rate of subduction then it results in the expansion of the earth's surface, making the earth grow larger.
But in nature, this rate of spreading is balanced by the rate of subduction. This is how the plate motion works on earth.
Thus, the correct answer is option (D).
Answer: There will be significant increase in the temperature if earth had more land area and less water.
Oceans play an important role to maintain the temperature on the earth. Every day, a huge amount of water evaporates from the ocean to prevent rise in temperature.
If most of the earth was land, then earth would be extremely hot. Most of the land would be deserts and the life anatomy of biosphere would be far from normal.
Rise in temperature would have drastic effects on biosphere. The life cycle of every living thing would be disturbed.