Question

Select a suitable topic sentence for the paragraph below:
For instance, people like the Eskimos, who live in places that have few trees, build temporary homes out of ice blocks. People who live in deserts, however, build houses out of mud or clay, which provide good insulation from heat and are readily available in their surroundings. In places where forests are plentiful, such as Northern Europe and Russia, homes are made out of wood. In the South Pacific, where there are many bamboo and palm trees, people use the tough, fibers of these plants to build their houses.

• A. People usually build homes out of things that they find around them.
• B. House construction in various parts of the world depends mainly on the availability of building materials.
• C. The climatic conditions in an area determine the kind of homes people build.
• D. The availability of trees is an important factor in the building of homes.

Answer 1

The correct option is B House construction in various parts of the world depends mainly on the availability of building materials.

The correct topic sentence is Option C. A topic sentence states the point about topic the writer wishes to make about the subject. Here, the two main points are types of houses in the different parts of the world and the building materials of these houses. Option A is incorrect as the sentence is too general and is talking about 'building houses by people'. Option C is incorrect as this sentence specifies the climatic conditions directly. Option D is incorrect as it does not adhere to the essence of the paragraph.