# Contour line: Quiz

Question 1: Generally, isotherms representing 5°C or 10°F ________ differences are used, but any interval may be chosen.
Thermodynamic temperatureLightningTemperatureWater vapor

Question 2: Some of the most widespread applications of environmental science contour maps involve mapping of environmental noise, ________, soil contamination, thermal pollution and groundwater contamination.

Question 3: Therefore, all points through which an isotherm passes have the same ________ at the time indicated.
Thermodynamic temperatureTemperatureLightningWater vapor

Question 4: Each calculated value is presumed to be the value of the variable at the centre of the area, and isopleths can then be drawn by a process of ________.
Numerical analysisPolynomialLinear interpolationInterpolation

Question 5: An isotherm (from θερμη or thermē, meaning 'heat') is a line that connects points on a map that have the same ________.
TemperatureWater vaporThermodynamic temperatureLightning

Question 6: Contour lines are curved or straight lines on a ________ describing the intersection of a real or hypothetical surface with one or more horizontal planes.

Question 7: An isotach (from ταχ or tach, meaning 'speed') is a line of constant ________ speed.
Precipitation (meteorology)ThunderstormMeteorologyWind

Question 8: "Contour line" is the most common usage in ________, but isobath for underwater depths on bathymetric maps and isohypse for elevations are also used.
Geographic information systemGeographyCartographySpatial analysis

Question 9: Contours are one of several common methods used to denote elevation or ________ and depth on maps.
AltitudeAtmospheric pressureAltimeterSea level

Question 10: An isohyet or isohyetal line (from ύετος or huetos, meaning 'rain') is a line joining points of equal precipitation on a ________.