Week 2

Question 1

Properties of water

Answer 1

found readily available on earth, found as liquid gas or solid, most dense at 4 degrees, “sticky” due to H-bonds and polar bonds, is an effective heat resivor

Question 2

Light in aquatic systems

Answer 2

light is essential for photosynthesis of primary producers, water is not eaisly penetrated by light, water clarity will influence this and shape the “photic zone” the area where light reaches

Question 3

Sources of dissolved gas in Aquatic Systems

Answer 3

The atmosphere - turbulence from riffles in the water aerate the water restocking oxygen. metabloic processes add gases (photosynthesis) plus input from groundwater

Colder water = more dissolved gases