Hamadi is a jazz pianist who is in a band that is struggling to get a record deal. When he feels like giving up, he remembers the euphoria he feels when he writes a song or when he plays the piano and hears people in the audience clapping for him. Which element of persistence is keeping Hamadi going

Potentially, a large spill can be: a) an environmental threat, if it gets into drains b) a dangerous fire hazard c) harmful to individuals d) all of the above

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

Using mr smith and his id, identify two potential internal validity threats that might affect the a—b design. tell me how that threat might impact conclusions in the a—b design. note #1: you cannot use maturation (since i already did that one for note #2: there are some mr smith id threats that won’t have much impact in a single case design.