I think I’ll go with C. long dry cold winters
The burial practices of humans have not led to any significant changes in Earth's biome. Matter can not be created nor destroyed. Burial practices lead to burying the dead bodies into the Earth, where they are decayed by the action of several microbes and insects. The organic and inorganic compounds are added to the Earth.
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Well, I think the answer would be, Both biomass and coal energies are inexpensive, but they release greenhouse gases.</span>
The relative balance within an optimal range also known as homeostasis
