Definations
What is a glacial period?
A period with permanent ice all over the Earth.
What caused the sea levels to rise?
The thawing of the ice sheets caused the water to melt, increasing the sea levels.
Name three countries that were affected by the ice age.
Canada, United Kingdom, Scandinavia, and Argentina
The Earth is currently in an Ice Age? True or False?
True
What is the definition of climate?
Climate is also known as the typical weather that a place experiences over time.
How were the ocean circulation disruptions caused?
Name five animals in the ice age
Musk ox, polar bears, caribou, snowy owls, grizzly bears, wooly mammoths, steppe bison, and scimitar cats.
The glaciers were only 10 centimeters thick.
False
What is an ice age?
An ice age refers to a period of time where the Earth was covered, at some or the other location with ice.
How did the freshwater influx decrease the salinity of the sea?
The freshwater came from snow, lakes, or rivers, which had water flowing to the ocean. This mix of freshwater decreased the salinity by making it less concentrated.
Name another word for caribou
reindeer
True or False? Sea levels rise as ice sheets and glaciers melt
True
What is a freshwater influx?
Freshwater influx refers to the transport of freshwater(water without any salt) from land to the ocean
(which has salt content), which decreases the salinity concentration.
Why did the ice sheets decrease the sea levels?
The water in the sea was stored in the thick ice sheets, making the sea levels decrease significantly.
Name some glacial evidences in the ice age
True or false? The sea levels rose significantly in the ice age.
False
What are the Younger Dyras?
The Younger Dryas was a period of abrupt climate changes that had a drop of temperature by 10 degrees which was influenced by a freshwater influx.
Why did the eruption of Mount Toba cause the Earth's temperatures to drop significantly?
When Mount Toba erupted, a lot of sulfur and ashes were released into the air. This accumulation of sulfur and ashes formed a thick cloud which blocked the sunlight, causing there to be a lack of sunlight, leading to a colder climate.
Give some examples of evidences in the Earth's climate cycles during the ice age.
lake beds, polar ice sheets, rock layers
True or False? The eruption of Mount Toba made the world much warmer.
False