Please can someone help me with question c

Me with these questions if you’re it sure don’t answer

The bacteria found in soil is usually harmful and measures are taken to remove any traces of microorganisms. true or false

Why is earth's outer core hotter than earth’s oceanic crust? earth’s oceanic crust is denser than earth’s outer core is. earth’s oceanic crust has lava flowing from the mantle. earth’s outer core has a composition of solid iron and nickel. earth’s outer core is deeper within earth than oceanic crust is.