25%-sand 255-clay 25%-gravel 25%-humus
Gravel is typically heavier than sand, and therefore gravel would be heavier than both clay and sand. This is because gravel consists of larger-sized particles and has a higher density compared to clay and sand.
Top soil usually has humus and minerals which are often absent from sand, clay or gravel.
SAND SAND
yes
Clay is heavier than sand since its density and its moisture content cause it to be heavier.
no
Same
Humus
gravel,coarse,fine sand,silt and clay
Gravel, sand, silt, and clay are classified based on their particle size. Gravel has the largest particle size (greater than 2mm), followed by sand (0.06mm - 2mm), silt (0.002mm - 0.06mm), and clay (<0.002mm). Gravel is coarse and drains water quickly, while clay is fine and retains water.
Loam example is:soil,clay,sand,and humus.