Fredrika's science teacher asked her to bring in three biotic items from her backyard ecosystem. which of the following groups of items should she bring? a. a ladybug, a spider, and some water from a mud puddle b. a lightning bug, a plug of grass, and a worm c. a caterpillar, a pine cone, and a piece of a robin's egg d. a smooth rock, some red dirt, and an empty bird's nest

Air conditioners not only cool air, but dry it as well. suppose that a room in a home measures 5.0m×9.0m×2.4m . if the outdoor temperature is 30 ∘c and the vapor pressure of water in the air is 85 % of the vapor pressure of water at this temperature, what mass of water must be removed from the air each time the volume of air in the room is cycled through the air conditioner? the vapor pressure for water at 30 ∘c is 31.8 torr.