In 1985, Matt Biondi set a record for the men's 100 m freestyle event in swimming. He took 49.17 s to swim 100 m. What was his speed?

Which of the following best describes the circuit shown below?

Which are causes of mechanical weathering? (check all that apply) a. acid rain b. plant growth c. animal actions d. carbon dioxide e. pressure release i chose b & e and got the question wrong.

Which inventor was often called the lady edison