chapter 3 (atmosphere)

Question 1

summer

Answer 1

sun heats water near surface of lakes

well defined warm layer over a cool one

Question 2

fall

Answer 2

water at surface of lakes cools and becomes heavier
winds move water around and mix (fall turnover)
lakes become uniform in temp and oxygen level

Question 3

winter

Answer 3

water sinks, surface freezes

Question 4

spring

Answer 4

cold waters warm until temp distribution is even again

winds blow and mix (spring turnover)

Question 5

temp differences in seasons are more extreme in the

Answer 5

northern hemisphere bc land warms and cools more quickly than water

Question 6

great ocean conveyor belt is driven by

Answer 6

thermohaline currents