bedrock

"The constant rain caused erosion of the soil on the family's garden plot. "

"The cornerstone of the new school building was placed during the groundbreaking ceremony. "

"Deaf and mute people communicate using languages like ASL."

"There is still time to oppose this plan."

"The smooth surface of the kitchen table was perfect for setting the dinner plates. "

"Asphalt, composed of oil and sand, is a widely used material for roads."

"The old wooden fence is weathering in the sun and rain, slowly changing color and texture. "

"to transport goods; to transport troops"

"There is one sterling and here is another"

"The location of the school library is on the second floor. "

"The construction workers were digging a foundation for the new house. "

"The foundation of his institute has been wrought with difficulty."