33.
① CO2 emissions from commercial and residential heating account for 12% of all CO2 emissions.
②Two-thirds of CO2 emissions arise from transportation and industry.
③The percentage of CO2 emissions is greater from power utilities than from transportation.
④CO2 emissions from residential heating are equal to one-fifth of those from power utilities.
⑤Most CO2 comes from power utilities, industry, and transportation;much less comes from commercial and residential heating.
34.
Fueled by a lifelong love of literature, Gonzales has devoted himself to providing people with more access to literature. When he moved to Marysville, Kansas, after a successful career as a barber in Los Angeles, he noticed a widespread hunger for reading in the community. He helped customers read books by opening a library with a collection of 500 books inside his barbershop in 1990. “Even though many people wanted to read books, they had nowhere to turn,” said Gonzales. His efforts came to be recognized nationwide and he won the Livingstone Award in 2003. “Mr. Gonzales has helped people find a shelter for their spirits,” wrote the Livingstone Committee.
35.
Every day each of us engages in many types of complex activities. We may go to school, participate in sports, drive cars, and sometimes become involved in conflicts.
We also perform other, less complex activities such as eating and sleeping. Our nervous system determines the complexity of activities that we are able to perform. Animals with nervous systems similar to a worm’s cannot play soccer, much less chess.
Why are some activities, such as eating and reproducing, common to all organisms, whereas other activities, such as nest-building, are limited to certain species? Why do some animals live in groups and others live alone?
Questions such as these are the focus of the study of behavior. In its simplest form, behavior is the conduct of an organism―the way it acts.
Thank you so much Thomas :)