overburden

"My grandmother's valuable were passed down through generations. "

"Archaeologists carefully dig in the dirt, looking for clues about past civilizations. "

"The construction crew had to dig deep to reach the subsoil before laying the foundation for the new house. "

"He listened carefully to his mother's concerns, feeling sorrowful about her disappointment. "

"The geologist found a deposit of gold ore in the mountain, far from the surrounding rock. "

"The electrical overload caused the circuit breaker to trip. "

"He removed the marbles from the bag."

"to investigate the causes of natural phenomena"

"The geologist found a beautiful mineral specimen in the rock collection. "

"The bakery's machinery worked tirelessly, producing dozens of loaves of bread each morning. "

"The geologist pointed to a distinct dark stratum in the rock formation, indicating a layer of volcanic ash deposited long ago. "

"The doctor confirmed that, unfortunately, the man is sterile and unable to have children. "