Question: How can scientists apply the Landsat data? (Choose 3)

Answer: to find fossils ; to track urban growth; to help farmers know if their crops are healthy

Question: A wave has a wavelength of 25 cm. It passes a particular point for five seconds. 35 crests pass the point during the five seconds. What is it frequency? ________________ cycles per second.

Answer: 7

Question: and map the ocean floor

Answer: Marie Tharp was one of the first ones to study _____________________.

Question: Which waves are NOT a part of the electromagnetic spectrum? (You may use the electromagnetic spectrum chart)

Answer: Sonar

Question: What part of the electromagnetic spectrum do we see?

Answer: visible light

Question: How does the TOPEX and Jason data help scientists? (Choose 3)

Answer: it helps them understand global climate change; it helps to predict El Niño events; it helps them understand currents

Question: a globe

Answer: A type of scale model of the earth could be _________________.

Question: Landsat

Answer: Oil spills, the health of the Earth’s coral reefs, deforestation, natural resources, and water pollution are monitored by ________________.

Question: crest; trough

Answer: The highest point of a wave is called the ______________. The lowest point of the wave is called the _____________.

Question: rift valleys; the mid-Atlantic Ridge

Answer: Marie Tharp and Bruce Heezen discovered (Choose 2) ______________________.