Many things that we use every day, like televisions, computers, refrigerators, and microwaves, require energy in order to work. We also rely on energy to make a car run and to heat water. All of the energy that we need to use must first be produced. Some sources of energy, such as gas and oil, can be harmful to the environment. Burning gas and oil can pollute the air. Also, gas and oil are limited, and we are using up the small amount that is left on the planet. This is why people should use alternative energy sources, which do not pollute the environment and are plentiful. Solar and wind energy are clean energy sources that should be used more often to reduce the pollution on Earth. What text structure is it?

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sequence
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classification
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definition
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problem and solution

What is the effect of narrator's word choice on the tone of this passage? the words "my heart shrank within itself" create a fearful tone. the words "wounded his fellow" develop a remorseful tone. the words "struck harsh upon my ears" suggest an irritated tone. the words "better-omened" set a hopeful tone. excerpt from "the cabuliwallah" by rabindranath tagore i was sitting in my study, looking through the accounts, when some one entered, saluting respectfully, and stood before me. it was rahmun the cabuliwallah. at first i did not recognise him. he had no bag, nor the long hair, nor the same vigour that he used to have. but he smiled, and i knew him again. "when did you come, rahmun? " i asked him. "last evening," he said, "i was released from jail." the words struck harsh upon my ears. i had never before talked with one who had wounded his fellow, and my heart shrank within itself when i realised this; for i felt that the day would have been better-omened had he not turned up.