Will mark brainiest! sally's class made a list of things that were used everyday by themselves and their families. ms. jennings, their teacher, asked the class which natural resources were renewable. that means, which resources could be replaced easily. sally raised her hand and said there were two on the list. which two do you think sally had in mind as renewable? a) oil and gold b) gold and iron c) cotton and iron d) trees and cotton

Which would be an adaptation in a rainforest, but not in a tundra? a. ability to store water for a long time b. fur that blends in with snow c. strong claws for killing prey d. a beak that can dig into thick trees

How do accessory pigments chlorophyll?

Sally and sue were investigating the topic of friction in science. they used a small car and a ramp as seen in the picture to test what they were learning. they knew that they slipped easily on waxed floors but not on carpet, so they decided to change the material on the surface of the ramp to see what happened. they planned to use glass, carpet, aluminum foil, and sandpaper and run the car down the ramp over each surface. what would be the best research question to guide the girls' experiment? a) does the amount of surface area affect the friction on the moving car? b) will the car travel fastest on the glass surface? c) how does the angle of the ramp affect the speed of the car? d)do rougher surfaces tend to create more friction than smooth surfaces?