Ice Ages and Climate Effects

The video introduces the concept of ice ages, explaining that they are periods when glaciers cover large areas of land. It discusses the current Quaternary ice age and its interglacial period. The video outlines five major ice ages in Earth's history: Huronian, Cryogenian, Andean-Saharan, Karoo, and Quaternary. It explores causes of ice ages, such as changes in Earth's orbit, solar energy output, atmospheric conditions, ocean currents, and volcanic activity. The video concludes with interesting facts, including the Holocene period and extinct mammals from the last ice age.

What is the current ice age we are living in called?

• Huronian Ice Age

• Cryogenian Ice Age

• Quaternary Ice Age

• Karoo Ice Age

Which ice age is sometimes referred to as 'Snowball Earth'?

• Karoo Ice Age

• Huronian Ice Age

• Cryogenian Ice Age

• Andean-Saharan Ice Age

Which ice age lasted from about 2400 to 2100 million years ago?

• Huronian Ice Age

• Cryogenian Ice Age

• Andean-Saharan Ice Age

• Karoo Ice Age

Which ice age is named after glacial tales in South Africa?

• Karoo Ice Age

• Cryogenian Ice Age

• Andean-Saharan Ice Age

• Huronian Ice Age

What is a significant factor that can lead to the onset of an ice age?

• Increased volcanic activity

• High levels of greenhouse gases

• Changes in Earth's orbit

• Proximity to the sun

What can low levels of greenhouse gases lead to?

• Higher sea levels

• Cooling of the Earth

• Increased volcanic activity

• Warming of the Earth

Which of the following can reflect the sun's rays and contribute to the cooling of Earth?

• Ice and snow

• Volcanic ash

• Greenhouse gases

• Ocean currents

What is the current interglacial period known as?

• Miocene

• Eocene

• Holocene

• Pleistocene

What is one effect of ice and snow on Earth's climate?

• They raise global temperatures

• They increase volcanic activity

• They reflect solar energy

• They absorb solar energy

Which of the following is a mammal that went extinct after the last ice age?

• Woolly Mammoth

• Saber-toothed Tiger

• Dodo

• Passenger Pigeon