tranletoan275 3/25/2025 2:46:22 PM

In the midst of what scientists call the sixth mass extinction, countless species are teetering on the brink of disappearance. Unlike previous extinction events caused by natural phenomena like asteroids or ice ages, the current crisis stems primarily from human activities. Habitat destruction, pollution, climate change, and illegal wildlife trade have pushed many species to the verge of extinction, with some populations reduced to mere dozens of individuals.

Among the most critically endangered species, the situation is particularly dire. The Northern White Rhinoceros, with only two females remaining, exemplifies the devastating impact of poaching and habitat loss. The Vaquita, a small porpoise found exclusively in Mexico's Gulf of California, has dwindled to fewer than 20 individuals due to illegal fishing practices. The Sumatran Rhinoceros population has plummeted by 70% in the past two decades, primarily due to deforestation and human encroachment.

Conservation organizations worldwide are implementing innovative strategies to preserve these species. Advanced reproductive technologies, such as in-vitro fertilization and genetic preservation, offer hope for some species. Protected areas and stringent anti-poaching measures have shown promise in safeguarding vulnerable populations. However, these efforts face numerous obstacles, including limited funding, political challenges, and the rapid pace of habitat destruction.

The future of these species hangs precariously in the balance. While some conservation projects have achieved remarkable successes, many species continue to decline despite intervention. Scientists emphasize that the next decade will be crucial in determining the fate of numerous endangered species. Only through immediate, coordinated global action and increased public awareness can we hope to prevent these remarkable creatures from joining the ranks of extinct species, preserving them for future generations to appreciate and study.

Question 23: Which of the following is NOT mentioned as a cause of species extinction?

A. Pollution                                        B. Disease                         C. Climate change                        D. Habitat destruction

Question 24: The word “teetering” in paragraph 1 is OPPOSITE in meaning to_________.

A. declining                                 B. endangered                 C. vulnerable                                D. stable

Question 25: The word “plummeted” in paragraph 2 could be best replaced by_________.

A. decreased                                 B. đropped                         C. declined                                        D. nosedived

Question 26: Which of the following best paraphrases the underlined sentence in paragraph 4?

A. Many conservation projects have failed completely, leading to continuous decline in endangered species worldwide.

B. Conservation projects have been highly successful in protecting species, though some populations continue facing challenges.

C. Although conservation efforts have shown positive results, numerous species are still decreasing in population despite help.

D. Most species are recovering thanks to conservation efforts, while only a few continue to face extinction risks.

Question 27: The word “them” in paragraph 4 refers to_________.

A. remarkable creatures

B. future generations

C. conservation projects

D. extinct species

Question 28: Which of the following is TRUE according to the passage?

A. Conservation projects worldwide have successfully prevented most endangered species from becoming extinct in recent years.

B. The Vaquita population in Mexico's Gulf of California has decreased to fewer than twenty individuals currently.

C. Natural phenomena like asteroids and ice ages are the primary causes of the current mass extinction crisis.

D. Scientists predict that all endangered species will recover within the next decade through coordinated conservation efforts.

Question 29: In which paragraph does the writer mention the current extinction crisis is human-caused?

A. Paragraph 1                                B. Paragraph 2                                C. Paragraph 3                        D. Paragraph 4

Question 30: In which paragraph does the writer mention the conservation efforts and challenges?

A. Paragraph 1                                B. Paragraph 2                                C. Paragraph 3                        D. Paragraph 4

Second Semester Midterm Exam GRADE 12 Test 7