CUET UG English Booster Test 3-Lessons and Insights

The correct answer is C. Assertion (A) is true because the Antarctic environment is often cited by researchers as the best place to monitor global environmental health. Reason (R) is true and explains (A) because the simplicity of the ecosystem (lack of biodiversity) allows scientists to isolate the effects of environmental shifts, proving the interconnectedness of Earth's systems.

The correct answer is D. The author reflects on the "beauty" of the delicate balance in the Antarctic ecosystem. When crossing the ecospheres and reaching the southern point, the stark, pure nature of the landscape highlights the aesthetic and functional harmony of Earth.

The correct answer is A. The sequence correctly constructs the author's descriptive sentence, establishing phytoplankton as the primary biological producers of the Southern Ocean.

The correct answer is B. This matches each ecological component to its technical description within the process of photosynthesis as described in the text.

The correct answer is C. "Synthesise" in photosynthesis means using energy to bind atoms together to create glucose/organic compounds. It is a constructive process, not a destructive one (like breaking down), making C the most accurate description.

The correct answer is D. This is the false statement. Phytoplankton are single-celled plants. Attributing their function to "multi-cellular animals" contradicts the basic definition of these organisms provided in the text.

The correct answer is A. This correctly summarizes the "chain reaction" described in the passage. Damage to the ozone layer leads to UV exposure, which harms phytoplankton, thereby disrupting their role in the global carbon cycle.

The correct answer is B. In this context, "affect" indicates that ozone depletion will have a significant influence on the biological functions of phytoplankton.

The correct answer is C. Since "repercussions" in the passage refers to negative impacts, an antonym must be positive. "Benefits" is the only positive word in the list, representing the opposite of a negative consequence.

The correct answer is D. Assertion (A) is false because the cycle is deeply dependent on microscopic organisms. Reason (R) is true because it correctly describes the vital role phytoplankton play in the carbon cycle.

The correct answer is A. This correctly matches the precise numerical details provided by the author to describe the specific expedition setting.

The correct answer is B. The arrangement accurately builds the descriptive sentence that the author uses to visualize the ocean below the ice.

The correct answer is C. This accurately maps the author's metaphor, comparing the Antarctic scene to a familiar urban scene (stray dogs under a tree) to emphasize the naturalness of the seals' behavior.

The correct answer is D. The act of "sunning themselves" serves as a metaphor for the natural, serene life cycle in Antarctica. It sparks the author's epiphany that all life is connected, standing in contrast to the human-caused chaos mentioned later.

The correct answer is A. This is the false statement. The whole premise of the author's journey and conclusion is that humans are not isolated and are deeply impacted by the health of the global ecosystem (including Antarctica).

The correct answer is B. The passage emphasizes that Antarctica is not separate from the world. A disruption there will ripple through the Earth's systems, putting the future survival of human civilization at risk, much like past extinction events.

The correct answer is C. The author specifically lists these extinct megafauna to illustrate the risk of extinction if our current climate trajectory continues without mitigation.

The correct answer is D. Assertion (A) is false because the author expresses deep concern and doubt about human survival. Reason (R) is true because it highlights the author's observation that humans, despite their short existence, have significantly disrupted the environment.

The correct answer is A. This reflects the author's optimism after spending time with idealistic teenagers. The "day" represents the small, individual effort or decision that, when multiplied, creates a profound difference in the long-term history of the planet.

The correct answer is B. This is the central, grave question posed by the author. By comparing the potential warming of Earth to the era of the dinosaurs, the author highlights the existential threat humans face if we do not manage our environment.