Delta (Δ, δ) is the fourth letter of the Greek alphabet, a symbol often representing change or difference. It also names the fertile, triangular landform created at a river's mouth, where sediment deposits shape new earth, a river delta.
Delta (Δ, δ) is the fourth letter of the Greek alphabet, a symbol often representing change or difference. It also names the fertile, triangular landform created at a river's mouth, where sediment deposits shape new earth, a river delta.