How does the speed of sound change as it moves from the surface of the ocean to 1000 meters below to surface? 50 ! a. the speed increases because the water is less dense at warmer temperatures. b. the speed decreases because the water is denser at warmer temperatures. c. the speed increases because at cooler temperatures the water has more mechanical energy. d. the speed decreases because at cooler temperatures the water has less mechanical energy.

Identify the various levels of atmosphere. troposphere mesosphere exosphere stratosphere thermosphere

What evidence supports the law of conservation of energy? a) mechanical energy is converted to chemical energy during photosynthesis. b) oxygen is made from the breakdown of carbon dioxide during photosynthesis. c)energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis. d)the sun gives off light energy that is absorbed by plants.

Svetlana and her mother are very similar. both have blonde hair, a love of scrapbooking, blue eyes, and a thin nose. which statement  most likely  describes svetlana’s traits? svetlana inherited her love of scrapbooking from her mother, but her blue eyes come from her environment.svetlana inherited her blue eyes from her mother, but her love of scrapbooking comes from her environment.svetlana inherited her thin nose from her mother, but her blonde hair comes from her environment.svetlana inherited her blonde hair from her mother, but her thin nose comes from her environment.