The solid roç material directly below the sediments on the ocean floor is part of Earth's: 1. lithosphere 2 hydrosphere 3 troposphere 4. outer core

The solid **rock material** directly below the sediments on the ocean floor is part of Earth's: **1. Lithosphere** **Explanation:** - **Lithosphere:** This is the rigid outer layer of the Earth, encompassing the crust and the uppermost mantle. On the ocean floor, the lithosphere consists of the **oceanic crust**, which lies directly beneath the sediments. - **Hydrosphere:** Refers to all the water on Earth's surface, such as oceans, lakes, and rivers. It doesn't pertain to solid rock materials. - **Troposphere:** This is the lowest layer of Earth's atmosphere where weather phenomena occur. It doesn't relate to the Earth's solid structures. - **Outer Core:** Located beneath the mantle, the outer core is composed of liquid iron and nickel. It is much deeper than the lithosphere and unrelated to the sediments on the ocean floor. **Correct Answer:** **1. lithosphere**