Match the landform in column 1 with the description in column 2

The difference(s) between the grand canyon and valles marineris is/are: (a) the grand canyon was formed by water, but valles marineris was not. (a) valles marineris is much longer than the grand canyon. (c) valles marineris is much wider than the grand canyon. (d) valles marineris has large volcanoes near it. all of the above

Which search pattern would be best suited for a crime scene where many investigators are available to search a large area? a. spiral b. grid c. line d. zone

After considering options, a student using the problem-solving process should next