Explain why and how theories may be changed or replaced over time.

Theories may be changed over time as new information is discovered or new technologies are developed. New developments lead to changes in experimental methods, which provide information that may or may not support the existing theory. If the theory is still supported, it may be updated. If it is not supported but the results are true and relevant, the theory may be replaced.

that scientist would be robert hooke

1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint