(earth-space) which statement describes a potential cause-and-effect relationship for earth's climate? a. the continents cluster together, causing the climate to become warmer. b. erupting volcanoes emit carbon dioxide, causing the climate to become cooler. c. the sun becomes less bright over time, causing the climate to become cooler. d. meteors that impact earth throw dust into the atmosphere, causing the climate to become warmer.

Which statement describes an endocrine function rather than an exocrine function? a. salivary glands release saliva into the mouth. b. sweat glands release sweat onto the skin c. the pineal gland releases melatonin into the blood. d. esophageal glands release mucus into the esophagus.

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?

Adoença vitiligo afeta qual doença do corpo?