Fresh and Salt Water Systems: Going Further

Watersheds, salinity and currents, reasoned about with Alberta and ocean data.

8 questions, free, marked as you go with a worked explanation on every one.

What this covers

Water falls as rain on the west side of the Rocky Mountains in Alberta. Which best describes what determines where it ends up?
Ocean water has an average salinity of about 35 grams of dissolved salt per kilogram of water. How many grams of salt are dissolved in 4 kg of that water?
Fresh water flows out of a large river into the sea. What happens where they meet, and why?
Which of these help drive ocean currents? Select all that apply.
A lake near farmland is tested and found to have high nitrate levels and very low dissolved oxygen. What is the most likely explanation?
A glacier advances 90 m in 30 years. What is its average speed in metres per year?
Which sequence correctly describes the water cycle for a drop leaving a lake?
Two water samples are tested. Sample A has more dissolved oxygen than sample B. Which is the best inference?