Question

gravity also drives processes in the rock cycle. earths gravity pulls objects toward its center, causing them to fall to the ground or move downhill.
the examples below describe processes in the rock cycle. select the two processes that directly depend on gravity.
water and sediment flow down a cliff.
grains of sediment settle to the bottom of a lake.
igneous rock forms as lava crystallizes.

Explanation:

1. For "Water and sediment flow down a cliff": Gravity pulls the water and sediment downward, causing them to move down the cliff. This movement is directly due to gravity's force pulling objects toward Earth's center.
2. For "Grains of sediment settle to the bottom of a lake": Gravity causes the sediment grains to sink through the water column and settle at the bottom. The downward pull of gravity overcomes the buoyancy and other forces, making the sediment accumulate at the lake bottom.
3. For "Igneous rock forms as lava crystallizes": This process is related to cooling and solidification of lava, mainly driven by temperature changes (heat loss) rather than gravity. Lava crystallizes as it cools, and gravity does not play a direct role in the crystallization process itself.

Answer:

The two processes that directly depend on gravity are:

• Water and sediment flow down a cliff.
• Grains of sediment settle to the bottom of a lake.