Endangered Species: Polar Bears Overview
10 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary threat that leads to animals being classified as endangered species?

  • Increase in global temperatures.
  • Overpopulation of predator species.
  • Loss of habitat and hunting pressures. (correct)
  • Natural disasters like earthquakes and volcanoes.

In what year were polar bears officially added to the endangered species list?

  • 2008 (correct)
  • 2018
  • 2023
  • 1998

Which of the following is NOT a region where polar bears are typically found?

  • Russia
  • Norway
  • Canada
  • Iceland (correct)

What is the role of the ozone layer in maintaining Earth's temperature?

<p>It blocks a portion of the sun's harmful rays. (B)</p> Signup and view all the answers

Increased air pollution primarily contributes to global warming by:

<p>Creating holes in the ozone layer, allowing more solar radiation to reach Earth. (A)</p> Signup and view all the answers

How does global warming directly endanger polar bear families in the Arctic?

<p>It causes the Arctic ice to melt and break apart, separating families and food sources. (A)</p> Signup and view all the answers

What is the primary food source for polar bears that provides them with essential fat?

<p>Seals (D)</p> Signup and view all the answers

How does the melting of Arctic ice directly impact polar bears' ability to hunt seals?

<p>Melting ice reduces the areas where polar bears can hunt seals, decreasing their food supply. (B)</p> Signup and view all the answers

Why are seal pups particularly important to the polar bear diet?

<p>Seal pups live on the Arctic ice, making them accessible hunting targets. (C)</p> Signup and view all the answers

What is a significant consequence of declining habitat for polar bear populations besides food scarcity?

<p>Reduced number of offspring being born. (C)</p> Signup and view all the answers

Flashcards

Endangered Species

Animals that are at risk of disappearing from Earth.

Global Warming

The gradual increase in Earth's average temperature.

Ozone Layer

A protective layer of gases that surrounds Earth and helps block harmful solar radiation.

Habitat

The natural home of an animal or plant.

Signup and view all the flashcards

Seals

The main food source for polar bears that provides them with essential fat.

Signup and view all the flashcards

Ice Melt

The process of ice melting and breaking apart.

Signup and view all the flashcards

Loss of Arctic Ice

The main threat to polar bear survival as it destroys their hunting grounds and food sources.

Signup and view all the flashcards

Hunting Grounds

The area where polar bears hunt seals.

Signup and view all the flashcards

Endangered Polar Bears

The impact of global warming on polar bears by making it harder for them to find food and raise cubs.

Signup and view all the flashcards

Air Pollution

The process of gases released from cars and factories damaging the ozone layer.

Signup and view all the flashcards

Study Notes

Endangered Species: Polar Bears

  • Polar bears are an endangered species, meaning they are at risk of extinction.
  • Their endangerment is primarily due to habitat loss and hunting.
  • The endangered species list was updated to include polar bears in 2008.

Polar Bear Habitat

  • Polar bears primarily live on Arctic ice near the North Pole.
  • Their range includes Norway, Greenland, Russia, Canada, and Alaska.
  • The icy environment of the Arctic is crucial to their survival.

Global Warming's Impact

  • Global warming is causing the Arctic ice to melt and break apart.
  • This disrupts polar bear families, separating them from food sources, particularly seal pups.
  • Melting ice also destroys polar bear hunting grounds.
  • Studies show declining birth rates in polar bear populations due to this declining habitat.

Polar Bear Diet

  • Polar bears primarily eat seals; they require the fat in seals for survival.
  • They sometimes eat walruses, smaller whales, and seabirds.
  • Seal pups, found on the ice, are a vital food source.
  • When ice melts, access to seal pups is reduced, which diminishes the polar bear's food supply.
  • Loss of hunting areas also leads to a reduction of adult seals available to eat.

Arctic Oil and Gas Impacts

  • Oil and gas exploration in the Arctic disrupts habitats through destruction of ecosystems.
  • Exploration activities drive away animals like seals, threatening polar bear food availability.
  • Noise and human presence contribute to this displacement.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Description

This quiz explores the plight of polar bears, an endangered species that faces significant threats from habitat loss and global warming. It covers their habitat, diet, and the impact of melting Arctic ice on their survival. Test your knowledge about these majestic animals and the challenges they face in today's changing climate.

More Like This

Polar Bears and Ice Caps
6 questions

Polar Bears and Ice Caps

FresherSerendipity avatar
FresherSerendipity
Polar Bears in the Arctic
5 questions

Polar Bears in the Arctic

SmoothSugilite4060 avatar
SmoothSugilite4060
Use Quizgecko on...
Browser
Browser