Can someone explain to me why a is the answer? i’m a bit confused.

Which of the following types of rock would most likely contain a fossil? slate granite lava rock limestone

The graph shows the amount of global warming happening in different ecosystems. which populations of organisms will likely decline the most as a result of climate change, and why? a.coral reefs because of the loss of the symbiotic algae living within their bodies b.penguin populations because the fish they eat will move into warmer waters c.mountain-dwelling birds because rising sea levels will relocate their food sources d.large cats in the rainforest because of decreased habitat loss for their prey

Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?