Hi ! can anyone me with these questions? it's too urgent, can anyone here give me detailed answers?

in advance.

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

Why did lincoln inform the confederacy that he would not e sending troops or weapons as food supplies were sent to fort sumter?

What word means having a variety of cultures in the same area? a. cultural diversity b. culture region c. popular culture d. population density