Where is most of the earth’s freshwater located? a) in lakes b) in rivers c) in oceans d) in glaciers

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

What are the three ways that an object can accelerate

Astudent creates a model of a closed ecosystem by filling a glass tank half full with water, then adding 10 snails and two small aquatic plants. the next day, all the snails are dead. what is the most likely cause of their death?