Section 20.1 | - Compare the construction of large buildings to the construction of houses.
- Describe basic methods used in building skyscrapers.
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Section 20.2 | - Explain why asphalt and concrete are preferred materials for roadways.
- Identify the ways in which bridges are supported.
- Discuss methods used to build tunnels.
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Section 20.3 | - List the three main parts of a dam.
- Tell the purpose of a monument.
- Explain how construction in space is different from that on Earth.
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