Question

what type of sensor measures elevation of land?
smoke signals.
maps.
lidar
sonar
what type of rock has lines called strata?
igneous
metamorphic
sedimentary
granite

Explanation:

For the first question, LIDAR (Light Detection and Ranging) uses light - based pulses to measure distances and can determine the elevation of land. Smoke signals are for communication, maps are for representing geographical information but not for measuring elevation directly, and SONAR is mainly used for underwater depth measurement.
For the second question, sedimentary rocks are formed in layers over time and these layers are called strata. Igneous rocks form from cooling magma or lava, metamorphic rocks form from the transformation of existing rocks due to heat and pressure, and granite is a type of igneous rock.

Answer:

1. C. LIDAR
2. C. Sedimentary