How many trees does it take to provide a day's supply of oxygen for 4 people? 1/10/50/100?

How can you help protect endangered animals from extinction? a. reduce, recycle, and reuse b. protect natural habitats c. landscape with native plants d. all of the above

2. What percentage of the species listed as endangered or threatened by extinction have been saved by conservation initiatives resulting from the Endangered Species Act? a. 100% b. 99% c. 65.2% d. 25%

Just one plant may provide food and/or shelter to more than how many species of animals? a. 30 species b. 1 species c. 10 species d. none

Nearly ________ percent of mammal species are globally threatened with extinction? a. 25 b. 3 c. 65 d. none of the above

1. An endangered species is _____________ that will become extinct if its populations continue to decline. a. any species of animal b. any species of plant c. any species of animal, plant, or other living organism d. none of the above

What once-endangered animal is the national symbol of the United States? a. grizzly bear b. Florida panther c. bald eagle d. timber wolf

What percentage of crops are dependent on bee pollination in the U.S.? 100%, 90%, 65% or 30%?

Of the 44,838 species that have been studied by scientists, about what percentage is threatened with extinction? a. 38% b. 89% c. 2% d. 15%

What are the greatest threats facing endangered species? a. habitat destruction b. illegal hunting c. introducing new species that can cause problems d. all of the above

In what U.S. state are half of the world's bald eagles found? a. Alaska b. Texas c. California d. Wisconsin

True or False: Deforestation is a leading cause of global warming in the world.

Hedgehogs are endangered in the UK. True or false?