U3L2

What is a lake?

• A body of water surrounded by mountains

• A body of water surrounded by ice

• A body of water surrounded by trees

• A body of water surrounded by land

Where does the water in lakes come from?

• From underground rivers

• Only from rain

• Only from snow

• From rain, snow, melting ice, streams, and groundwater seepage

What type of lakes are formed after a volcano becomes inactive?

• Glacier lakes

• Crater lakes

• Tectonic lakes

• Man-made lakes

What is a glacier?

• A mountain of ice

• A river of ice

• A lake of ice

• A valley of ice

Where do alpine glaciers form?

• On mountainsides and move downward through valleys

• In the middle of cities

• In the desert

• On flat plains and move in all directions

What is the zone of accumulation in a glacier?

• Where the glacier retreats

• Where ice melts

• Where snow is added at the start of the glacier

• Where the glacier moves downhill

What landscape features did glaciers leave behind when they began their final retreat?

• Deserts and canyons

• Islands and oceans

• Lakes, valleys, and mountains

• Forests and rivers

Where do glaciers form?

• In places where more ice melts than snow falls

• In urban areas

• In places where snow piles up each year

• In tropical regions

What is the process of snow compacting into glacial firn called?

• Snowification

• Firnification

• Glacierization

• Iceification

How are lake basins formed?

• By volcanic eruptions

• By tectonic plates creating faults

• By glaciers carving out great pits

• By meteorite impacts