soil
what is soil a mixture of
broken rocks, minerals, organisms, organic matter, air, and water
what are three main types of rocks
sedimentary
metamorphic
igneous
Dimond scratches what
dimonds ond others
how far into the soil do the plant roots exend
to the humus
what are some types of sedimentary rocks
shale
limestone
silt stone
sandstone
chert coal
topaz gets scatched by what
driil bit
topsoil has the highest concetrail of
what
what type of igneous are there
basalt
obsidian
andesite
are there minerals in soil
yes
what is the nick names for all of the layer of soil
topsoil
subsoil
weathered rock
solid rock
what are types of metamorphic rocks
slate
gneiss
marble
phyllite
soapstone
what is number 10 on the mohnś scale
dimond
what are three types of soil
sand, silt, and clay
what are igneos rocks formed by
the cooling and soildifying of molten materials
cu is what on the element table
copper