Which of these describes an atoll? 1. a coral reef that builds up around an eroding volcanic island.

2. All of these

3. a ring-shaped coral reefs, islands, or groups of islets

4. a coral rim that encircles a lagoon partially or completely.

How will you raise money to equip an army and build a navy. mention specific ideas

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

Experiment to investigate effect of medication on levels of stress in males and females. dependant variable?