1. a group of students is trying to find out which material grows tomatoes best. they have four containers with different types of material in each. in the first there is potting soil, in the second there is sandy soil, in the third there is gravel, in the last container, there is silt.

which of the materials would be best for growing tomatoes?

2. which of the following soils has the roughest texture?
a. potting soil
b. silt
c. clay
d. sand

3. the table shows soil content and its associated color. the red river on the oklahoma- texas border is named for the colored sedimentary rocks that make up the river bed.

content color

calcite white
carbon black
glauconite green
iron red

according to the table, which mineral is most likely contained in the riverbed?

a. carbon
b. calcite
c. iron
d. glauconite