Which variables related to social class distinction is identified by the text as being unclear and the subject of debate with respect to its role as an indicator of social class?

For 50 pointsfredrika's science teacher asked her to bring in three abiotic items from her backyard ecosystem. which of the following groups of items should she bring? a. a lightning bug, a plug of grass, and a wormb. a smooth rock, some red dirt, and an empty bird's nestc. a ladybug, a spider, and some water from a mud puddled. a caterpillar, a pine cone, and a piece of a robin's egg

The colors at sunset are usually the result of raindrops

Which regulatory agency attempts to prevent unfair business practices and consumer fraud?