What was one of the greatest accomplishment of the construction industry in the 1920s

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

Which statement about spreading knowledge of diseases and health around the world is correct?

Here a fun and extra question will give brainless to the best onehow much wood could a wood chuck chuck if a wood chuck could chuck wood?