Question

10.) what type of rock is most easily weathered?

Explanation:

Rocks can be classified into three main types: igneous, sedimentary, and metamorphic. Sedimentary rocks, especially those like limestone (composed of calcite, which reacts with acidic water) or shale (with fine - grained and relatively weak mineral bonding), are more easily weathered. This is because sedimentary rocks often have more porous structures, weaker mineral cements holding grains together, and minerals within them (like calcite in limestone) are more reactive to chemical weathering agents such as water and acids. Igneous rocks (formed from cooled magma/lava) tend to have stronger mineral structures, and metamorphic rocks (formed under heat and pressure) also have relatively strong, recrystallized structures that are more resistant to weathering compared to many sedimentary rocks.

Answer:

Sedimentary rocks (especially those like limestone, shale) are most easily weathered.