What type of material is often found in kame landforms?

Kame landforms are typically formed from the accumulation of materials that have been transported and deposited by glacial activity. They are characterized by their steep sides and are often found in glaciated regions. The primary material found in kames is glacial till, which consists of a mix of clay, silt, sand, gravel, and boulders.

Glacial till is unsorted sediment that has been directly deposited by glacial ice as it retreats, and this irregular mix of particle sizes is what forms the distinct topography of kames. The deposition of till in these landforms occurs when meltwater carries materials away from the glacier, which then drop sediment as it loses energy. This process results in the formation of the hill-like structures that we recognize as kames, making glacial till the correct answer in this context.

On the other hand, while sand and gravel can be components of till, they do not exclusively define the materials typical of kame formations, and outwash refers to materials deposited by meltwater beyond the glacier's edge, which is generally more sorted than till. Organic matter, while present in some sediments, does not characterize kame landforms specifically.