What are labor resources? human effort necessary to produce goods
artificial goods made by human industries
human technology that allows for greater efficiency
natural materials replenished through human activity

A

Explanation:

human effort necessary to produce goods

sand 60

clay 10

silt 30

sandy loam should be dominated by the sand. as the amount of sand increased, the amount of slit needed to anchor the plants' roots to the sand will also be increased. even though the amount is very little, 10% part of clay is still necessary for proper oxidation.