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Humans have relied on biofuels since they discovered fire. Biofuels are organic materials from plants and
animals. Wood, crops, and landfill mass can all be used to create blofuels. For centuries, blomass-any organic
matter, but mostly wood and crop waste-was burned to create heat. Today, blomass is used for creating the
energy we use for heat and cooking. Biomass is also used to create natural gas for fueling cars. Biomass emits
methane gas as it decomposes. That gas can be used to create energy or can be burned to create heat. Biofuels
are renewable resources. That means that they are relatively easy to replace.
Do It!
Biomass is
A invisible
B abundant
C immense
D useless
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Question 3.0

In which of the following excerpts from "the yellow wall paper" does author charlotte perkins gilman seem to mock the romantic belief in the supernatural? a. a colonial mansion, a hereditary estate, i would say a haunted house, and reach the height of romantic felicity—but that would be asking too much of fate! b. there is a delicious garden! i never saw such a garden—large and shady, full of box-bordered paths, and lined with long grape-covered arbors with seats under them. c. the color is repellent, almost revolting; a smoldering unclean yellow, strangely faded by the slow-turning sunlight. d. then i peeled off all the paper i could reach standing on the floor. it sticks horribly and the pattern just enjoys it!