In a discussion of the purposes of a boundary, explain the statement that “a boundary is both a line on the map and a plane in space.” Explain using complete sentences and give at least 2 to explain.

22. the effect of threshold braking is to a. cause skids. b. lock wheels. c. prevent locking of wheels. d. increase stopping distance.

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

50pts for which group is the poverty rate the highest? poverty: select the best answer from the choices provided. a. asians b. whites c. female headed households d. african-americans