nttlinh26052001 3/25/2025 2:50:03 PM

The accelerating decline of wildlife populations has triggered devastating chain reactions throughout Earth's ecosystems, threatening the delicate balance of nature that has evolved over millions of years. (18)_________, including deforestation, pollution, and climate change, with current extinction rates reaching unprecedented levels in recorded history. Wildlife species, (19)_________, are disappearing at an alarming rate, disrupting complex food webs and natural processes that sustain life on Earth. The loss of apex predators destabilizes prey populations, and (20)_________. Moreover, the disappearance of pollinator species threatens global food security; furthermore, this crisis impacts human agricultural systems worldwide, potentially leading to significant crop failures and food shortages. Living in harmony with nature, (21)_________ and preserve wildlife for future generations. The consequences of continued wildlife loss extend far beyond individual species, affecting everything from soil fertility to water quality and ultimately threatening human survival itself. Scientists estimate that the current extinction rate is hundreds of times higher than the natural background rate, indicating a severe crisis in biodiversity. The interconnected nature of ecosystems means that the loss of even seemingly insignificant species can trigger cascading effects throughout the food web. (22)_________, incorporating both local and global initiatives, to prevent further degradation of our planet's biodiversity and ensure the stability of Earth's life-supporting systems for future generations.

Question 18:

A. Species many to extinction driven by human activities been

B. Been driven many species to extinction human activities by

C. Human activities driven extinction many species have been to

D. Many species have been driven to extinction by human activities

Question 19:

A. had been playing crucial roles in maintaining ecological balance

B. which play crucial roles in maintaining ecological balance

C. will be playing crucial roles in maintaining ecological balance

D. whose crucial roles play in maintaining ecological balance

Question 20:

A. leads this imbalance to worldwide ecosystems vegetation of overgrazing various in

B. overgrazing of vegetation this imbalance worldwide various ecosystems in leads to

C. this imbalance leads to overgrazing of vegetation in various ecosystems worldwide

D. to overgrazing leads this imbalance of vegetation worldwide ecosystems various in

Question 21:

A. humans must recognize their responsibility to protect

B. recognizing their responsibility must to protect

C. having recognized must their responsibility protect

D. recognized must their responsibility to protect

Question 22:

A. Conservation efforts must be dramatically scaled up

B. Having conservation efforts must dramatically scaled up

C. Which conservation efforts must dramatically be up scaled

D. That must conservation efforts be dramatically scaled up

Second Semester Midterm Exam GRADE 12 Test 8

 

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