Exploring the Subnivian Zone

The video explores the discovery of vole tunnels in the snow, leading to an explanation of the subnivian zone, a space under the snow that provides warmth and protection for small animals. It describes how this zone forms and its importance for animal survival during winter, highlighting the adaptations and strategies animals use to stay safe from predators.

What did the explorers find in the snow that led to a vole?

• A snowman

• A frozen pond

• A small hole

• A large cave

What is the subnivian zone?

• A layer of ice on top of the snow

• A space above the snow

• A special area under the snow

• A type of snowstorm

How does the subnivian zone form?

• Due to animal activity

• With the help of plants and rocks

• Through the action of wind

• By melting snow

What happens when snow falls on sturdy plants and rocks?

• It turns into ice

• It creates gaps and pockets

• It forms a solid layer

• It melts immediately

Why is the subnivian zone warmer than the outside?

• It is heated by the sun

• It is closer to the Earth's core

• Animals generate heat

• The snow above acts as insulation

What is one of the main purposes of the subnivian zone for small animals?

• To escape the heat

• To find food

• To provide shelter

• To store water

What is the primary reason voles come above the snow?

• To build nests

• To escape predators

• To enjoy the sun

• To find food

How do voles use the subnivian zone to stay safe?

• By staying above the snow

• By camouflaging with the snow

• By hiding in trees

• By using tunnels to avoid predators

What do predators like foxes rely on to find prey in the subnivian zone?

• Their hearing

• Their speed

• Their eyesight

• Their sense of smell

What is a key feature of the subnivian zone that helps voles escape predators?

• Its high temperature

• Its bright lighting

• Its numerous tunnels

• Its large size