Which of the following is an example of physical change? Mixing baking soda and vinegar together, and this causes bubbles A glass cup falls from the counter and shatters on the ground. Lighting a piece of paper on fire and the paper burns up and leaves ashes. Baking a birthday cake for your mother.

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

These facilities were organized and sponsored by churches or charities during the great depression in an effort to feed the homeless and needy.

Why did the united states want to remain neutral and how did it become involved in world war ii?