geography Rocks and Minerals
what layer of earth consits of 32km of rock and loose materials
the crust
what layer of the earth covers 80% of the earths interior and is made up of magma
the mantle
what layer of the earth is a solid mass of iron and nickel
the inner core
what layer of earth is made up of magma containing moslty iron and nickel
the outer core
what are the three types of rocks?
metomorphic rock, igneous rock and sedimantary rock
what is a metallic mineral?
made from metals, valued for beauty, strength or human needs. example; iron, gold and copper
what is a fossil fuel
a fuel formed in the earth from plant or animal remains. example; coal
what is a non-metalic mineral?
all very in characteristcs, they dont contain metal or fossil fuel, essential to canadians. example; diamonds
what is a non-renewable resource?
cannot be reproduced, grown or generated and exists in limited supply
overall value of mining production?
$42 billion/yr
canada is the worlds ----- largest producer of ---------
3rd, diamonds
how manu communitys rely on the mining industry?
more than 115
contributes -------/yr in taxes
$8 billion