Because the lithosphere and the asthenosphere transfer heat, approximately how far do tectonic plates end up moving every year?

a. 1-6 inches
b. 1-6 yards
c. 1-6 meters
d. 1-6 miles

c. 1-6 meters

The correct answer is d. 1-6 miles.

To determine the approximate distance tectonic plates move every year due to the transfer of heat between the lithosphere and asthenosphere, we can look at the average rate of plate motion. The best way to obtain this information is through scientific studies and measurements that track plate movements over time. Here's how you can find the answer:

1. Research scientific studies: Look for relevant scientific studies or research papers that specifically focus on plate tectonics and the measurement of plate motion. These studies often use various methods, such as GPS measurements, seismology data, and satellite observations, to monitor plate movements over time.

2. Look for average rates of plate motion: Once you have found reliable scientific studies, examine the data to identify the average rates of plate motion. These rates are often reported in centimeters or inches per year, which can then be converted to a more familiar unit of distance.

3. Convert the units to determine the answer: Once you have the average rate of plate motion, convert the given units (inches, yards, meters, or miles) to match the unit used in the scientific studies. This will help you determine the appropriate option.

Given the information provided, it is difficult to provide a concrete answer without referring to scientific studies or research. However, based on generally accepted estimates, the average rate of plate motion falls within the range of a few centimeters (or inches) per year. Therefore, option a. 1-6 inches, would be the most likely choice from the given options.