You should spend about 20 minutes on this task. The diagram below shows how geothermal energy is used to produce electricity. Summarise the information by selecting and reporting the main features, and make comparisons where relevant. Write at least 150 words. The diagram shows that there are fi...
With the increasing demand for energy such as oil and gas, people start to look for their sources in remote and untouched places. Do the advantages of this development outweigh the disadvantages? Give reasons for your answer and include any relevant examples from your own knowledge or experience...
How does phytoplankton produce energy?Question:How does phytoplankton produce energy?Plankton:Plankton belong to several different taxonomic kingdoms. There are over 5,000 species on earth. One important type of plankton is phytoplankton. Phytoplankton are classified by the method they use to make food...
We found that a combination of ecological and social challenges do produce the brain size we see in humans. But it was ecological challenges that expanded brains. In contrast to the dominant view and our own expectation, we found that social challenges contributed by decreasing brain size. But ...
The amount of energy in a light wave is proportionally related to its frequency: High frequency light has high energy; low frequency light has low energy. So, gamma rays have the most energy (part of what makes them so dangerous to humans), and radio waves have the least. Of visible lig...
It turns out that the bigger the current flowing through a wire, the more energy gets wasted. By making the current as small as possible, we can keep the energy to a minimum—and we do that by making the voltage as big as possible. Power stations produce electricity at something like ...
It's a statement we've all heard before: "Humans only use 10 percent of their brains." This claim has been passed down through generations, from educators to motivational speakers, and even in popular culture. But how much truth is there to this widely accepted notion? Let's dive into ...
Nuclear power has been called a clean source of energy because the power plants do not release carbon dioxide. While this is true, it is deceiving. Nuclear power plants may not emit carbon dioxide during operation, but high amounts of carbon dioxide are emitted in activities related to buildin...
专业英语四级模拟试卷681 (题后含答案及解析) 题型有:1. DICTATION 2. LISTENING COMPREHENSION 3. LANGUAGE KNOWLEDGE 4. CLOZE 5. READING COMPREHENSION 6. WRITING PART I DICTATIONDirections: Listen to the following passage. Altogether the passage will be read to you four times. During the first read...
Leaders often spend more time coaching the lowest performers than they do the top performers, for example. What if organizations put more energy and resources into coaching and feedback for the highest performers in the most critical roles? Feedback is ...