1.
What can expose rock to weathering?
mountain building
igneous processes
metamorphic processes
compression and heat
The process of exposing rock to weathering can be influenced by several factors. Among the options you mentioned, all of them can play a role in exposing rock to weathering to some extent. Let's break it down:
1. Mountain building: When tectonic plates collide or move, they can create mountains. This process uplifts rock from deeper layers and brings it closer to the Earth's surface. As a result, the exposed rock is more susceptible to weathering agents like wind, water, and ice.
2. Igneous processes: Igneous processes involve the formation and movement of molten rock, such as volcanic eruptions. When magma reaches the Earth's surface and solidifies, it can create new rocks that are exposed to weathering over time.
3. Metamorphic processes: Metamorphic processes occur when pre-existing rocks are subjected to high temperatures and pressures deep within the Earth. This can alter the minerals and textures of the rocks. As metamorphic rocks are uplifted through tectonic activity or erosion, they can become exposed to weathering forces.
4. Compression and heat: The combination of compression and heat can also contribute to rock exposure. Over time, tectonic forces can cause rocks to be folded, faulted, or uplifted. The compression and intense heat can lead to the formation of new rocks that are ultimately exposed to weathering.
To summarize, all of these processes can expose rocks to weathering. It is important to note that weathering is typically a gradual process that occurs over long periods of time due to various natural forces acting on the exposed rock.