What is true of loam? A. It's primarily formed from decomposed plants.
B. Loam contains mostly sand and gravel.
C. Loam is a type of soil that's good for agriculture.
D. It has equal concentrations of sand, clay, and silt.

Plz ! for many generations farmers in north america have been choosing to cross corn plants with large ears of corn each year this results in the new generation of plants also growing large ears of corn. what is the technique called? a. selective breeding. b. natural selection. c. mitosis. d. asexual budding.