A student performed an activity with soil and water. The table below shows the kind of soil that was added to each of two cans. After the soil was added, holes were made in the bottom of each can. Then a total of 200 milliliters of water was added to each can. The water that dripped from each can was collected for one minute. Which of the following is an observation in this experiment?* Soil Experiment Volume of Water Type of Soil Collected in One Minute (mL) Clay 55 Sand 110 h Sunlight heats water in clay faster than water in sand. Plants grow better in clay than in sand. Water flows through sand faster than through clay. Insects are more active in sand than in clay.

The higher you go up the less oxygen there is 

Heatamount of salt . . .

Hunting in the darksome fish rely on senses beyond sight. in the darkness of the marianas trench, a fish called the rattail has an extremely sensitive sense of smell. the fish uses scent, rather than sight, to steer toward food. once it's near food, the rattail uses a special organ on the bottom of its chin to guide itself by feel.marine snowone staple of the deep sea diet is "marine snow," flakes of organic, edible substances that sink down from the upper ocean. animals at the ocean's bottom find sustenance in everything from the bodies of dead creatures to fecal matter. marine snow is diverse enough to support numerous species. for instance, several species of snails and worms feed exclusively on deceased whales.microorganismsthe deep sea is an intricate ecosystem, and even the ocean floor itself plays a part. hydrothermal vents are cracks in the sea floor where erupting magma mixes with ocean water to produce plumes of hot, sulfur-rich chemicals. some microbes can use these chemicals for energy, sustaining their existence and that of the animals who depend on their roles in the deep sea food chain.