Deposition of glacial or glacial marine strata and
Air static flow of the Arctic Ocean
Distribution of ice
Motion of the sea water
The rate of chemical weathering would increase with increased temperature and humidity at the equator. This would lead to a greater rate of chemical weathering.
Chemical weathering of rock would lead to absorption of atmospheric carbon dioxide thereby reducing Green house Gases in the atmosphere and increasing the temperature
The decrease in CO2 would cool the planet being unable to trap the solar radiation while an increase in CO2.would increases the temperature by absorbing heat.
Cooling of the lower layers of the atmosphere
It was a negative sign
The second radiative forcing was the increase of CO2 and other green house gases due to volcanic emissions and methane generation. The signs were the cyanobacterial bloom in the ocean.
The feedback was decreasing CO2, a negative feedback in the snowball situation. The end of snowball was dominated with the increase in CO2 and methane CH4 giving rise to increasing ocean temperatures.
It was a positive feedback
The statement is true
In snowball earth the CO2 concentrations were comparatively lower. It would require excessively higher amount of CO2 that is nearly 350 times of present days CO2 content
The North Atlantic Ocean current, the South Atlantic Ocean current and the North Pacific Ocean Current are the three major ocean currents
The Gulf Stream along the east Coast of United states brings warm current from the equator, and the Kuroshio Current brings warm water from the eastern coast of Japan in the northern Pacific Ocean.
The coast of Canada is warmer compared to the coast of England, due to warm Ocean currents.
Due to the warm ocean current that brings water from the equator while the coast of England is fed by the North Atlantic drift which is relatively colder
Canary Islands are cooler than Florida, since the Canary current due to its upwelling is replaced by cold waters from below. This makes the region colder than Florida.
The Sea surface temperature, the upwelling and down welling of the ocean circulations, the temperature of the currents make a region either cooler or warmer.
All answers are formulated as per the information present in the lecture notes