ESS 21: On Thin Ice Midterm 2 2019 Version A
Last Name: _______________________
Student ID No.: ___________________
Part A: Answer the following 20 multiple choice questions on the Datalink form using a 2B pencil.
Questions are worth 1 point each.
1. What is the value of angle Z on the diagram below?
2. Which of the following will NOT raise sea level when it melts?
b. cirque glacier
c. sea ice
d. tidewater glaciers
. A satellite emits a radio wave towards Earth’s surface which is
3000 km below. If the radio wave
travels at 300,000 km/s, how long will it take the satellite to detect the reflected signal?
4. If a rock can contain only small amounts of water but the water can flow through it easily, it has
5. What causes carbon dioxide or methane to be released when permafrost thaws?