Final answer:
Terrigenous sediment consists primarily of mineral grains eroded from continental rocks.
Step-by-step explanation:
Terrigenous sediment consists primarily of mineral grains eroded from continental rocks.
This means that the sediment is made up of particles that have been worn away from rocks on land and transported to the ocean or other bodies of water.
For example, when rivers flow towards the ocean, they carry sediments such as sand, silt, and clay from the land with them. These sediments then settle on the ocean floor and contribute to the formation of terrigenous sediment.