UNIT 10 - ECOSYSTEM - TEST 1

A. which B. that C. whose D. whom

A. Moreover B. However C. Though D. Because

The word "altered " most closely means ______.

• destroyed

• changed

• covered

• explored

The word "ones" in the third paragraph refers to ______.

• impacts

• rates

• habitats

• species

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best completes each of the following exchanges. Carlos and Sofia are debating the best approach to wildlife conservation in their environmental science class. -Carlos: "Shouldn't we prioritize protecting natural habitats to conserve biodiversity?" -Sofia: "_________. Preserving ecosystems is key to maintaining biodiversity and supporting life."

• I couldn't agree more

• I couln't agree with you

• That might not be necessary

• I'm not convinced that's the best approach

The ________ is a sequence of organisms each dependent on the next as a source of food.

• water cycle

• food chain

• carbon footprint

• national park

The blue whale, the largest ________ on Earth, is an example of a species greatly impacted by changes in ocean ecosystems.

• mammal

• habitat

• material

• climate

To maintain the balance of our planet's ecosystems, it's crucial to engage in the ________ of natural resources.

• conservation

• exploitation

• development

• industrialization

The African elephant is a(n) ________ species that requires large land to support its migratory habits.

• native

• endangered

• rare

• organised

The _________to the Earth's biodiversity is not just an environmental issue but also a concern for human health and wellbeing.

• disappearance

• threat

• conservation

• experience