5. What will happen if the organisms fail to adapt to abrupt changes in the environment? *
A. more organisms will evolve
B. more diverse of species will exist
C. more species will become extinct
D. more species will become dependent to nature
6. Which of the following is not a reason a species may become extinct? *
A. overhunting
B. reproducing
C. competition
D. habitat loss
7. In which way do humans cause species extinction?
A. By over hunting animals for food or products.
B. By destroying the natural habitat of species.
C. By polluting the environments of the world.
D. All of the above.
8. Which is least likely to push a species toward extinction? *
A. cutting down entire forest
B. putting animals in a zoo
C. polluting mountain streams
D. introducing new species to an ecosystem with no known natural predator
9. Which of these describes a species that has become extinct? *
A. fewer members of the species are dying than being born
B. more members of the species are dying than being born
C. very few members of a species are alive
D. all members of a species have died
10. When a plant or animal becomes extinct, it is gone _______. *
A. forever
B. until next week
C. 5 years
D. to sleep
11. How will you promote environmental awareness among your fellow students? I.by showing how to segregate waste materials. II. by throwing small pieces of garbage anywhere III. by making pamphlets or leaflets discussing about IV. environmental problems and its cause and effect. IV. by encouraging all students to participate in all school program regarding the health and sanitations. *
A. I, II
B. I, III
C, I, II, IV
D. I, III, IV
12. What is the term used to describe when the population of a species decreases that the species may not survive? *
A. endangered
B. extinct
C. troubled
D. threatened
13. Humans have caused some animals to go extinct. What is one way that humans might have caused some animals to be extinct? *
A. eating all the animals as food
B. destroying animal habitat
C. creating new homes of animals
D. none of the above
14. There are many animals that were alive years ago that are now extinct such as dodo at mammoth. What is most likely the cause of their extinction? *
A. The organisms didn't want to live in the new world
B. The organisms were too big to survive.
C. The organisms couldn't adapt to their environment
D. The organisms were destroyed by a fire
15. Before an animal goes extinct, it goes on a list to be protected. Why should we protect endangered animals? *
A. Endangered animals are the last remaining animal of that species.
B. Endangered animals could be bred for their fur.
C. Endangered animals could be used for experimentation
D. Endangered animals are worth a lot of money.