Describe major challenges to the green environment that are caused directly or indirectly by the built environment

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils

During convection, less dense fluid rises and denser fluid sinks.

Genetic orders can result when sister chromatids fail to separate properly during which phase is this problem most likely to occur