List of top Questions asked in CBSE CLASS XII

Read the following passage carefully :

(1) Introduction : Deforestation, the clearing of forest land for other uses, is a global environmental catastrophe with profound and often irreversible consequences. While its impact on climate change and biodiversity loss is widely recognised, its most immediate and devastating effects are often borne by indigenous tribes, whose existence is inextricably linked to the health of forest ecosystems. These communities, guardians of ancient knowledge and sustainable practices, face not only the loss of their physical homes but also the erosion of their cultural identity and traditional livelihoods.

(2) Survey Examination : Consider the plight of the Arava Tribe, a hypothetical indigenous community living deep within a remote part of the Arava Basin. For generations, the Arava have co-existed peacefully with the rainforest, drawing from its richness for food, healing and spiritual nourishment. Their traditional knowledge, passed down through generations, encompasses intricate understanding of plant properties, animal behaviour and sustainable resource management. The Arava’s diet comprises forest-sourced fruits, nuts, wild game and freshwater fish, reflecting their deep ecological integration. Their shelters, constructed from indigenous materials and their ceremonial practices, aligned with seasonal forest rhythms, underscore a lifestyle symbiotically tied to their natural surroundings.

(3) Methodology and Implications : Moreover, in recent decades, the Arava’s ancestral lands have been encroached upon by illegal logging operations, cattle ranching and agricultural expansion. Vast tracts of their forest homes have been systematically cleared, leading to a cascade of environmental and social impacts. Environmentally, the loss of tree cover has resulted in localized climate shifts, including increased temperatures and altered rainfall patterns, leading to prolonged droughts and unpredictable floods. Biodiversity has plummeted, with many plant species vital for Arava medicine disappearing and traditional hunting grounds shrinking, impacting their food security. The pollution of waterways from agricultural runoff further compromises their health and access to clean drinking water.

(4) Effects and Conclusion : From a social and cultural perspective, the effects are equally dire. The destruction of sacred sites within the forest has severed spiritual ties. The forced displacement of families due to land loss has led to the breakdown of community structures and increased vulnerability to external diseases. Traditional knowledge, once practical for survival, becomes less relevant in a deforested landscape, leading to cultural erosion, particularly among younger generations. This disruption often results in increased poverty, loss of identity and heightened conflict with encroaching outsiders.

Social and Cultural Impacts of Deforestation on Indigenous Tribes

S.No.Types of impactSeverity (on the scale of 1 – 10)
1Destruction of sacred sites7
2Forced displacement8
3Breakdown of community structure6
4Vulnerability to diseases5
5Cultural erosion7
6Increased poverty8
7Loss of identity7
8Heightened conflict6

Read the following passage carefully :

(1) Robotics is transforming the healthcare landscape by revolutionizing the way medical procedures are executed, patients are managed and hospital operations are streamlined. The seamless integration of artificial intelligence (AI), engineering and automation has catalysed the emergence of cutting-edge robotic technologies that are making healthcare more precise, efficient and accessible than ever before. From surgical theatres to outpatient clinics, robotics is enhancing workflow efficiency and significantly improving clinical outcomes.

(2) Among its most notable applications is robot-assisted surgery. Advanced systems such as the ‘Da Vinci Surgical Robot’ empower surgeons with superior visualization, refined control and pinpoint accuracy. These minimally invasive techniques reduce surgical trauma, minimize complications and shorten recovery periods. Robotic surgery has proven especially transformative in intricate disciplines like cardiothoracic, gynaecological and neurosurgical procedures where precision is paramount.

(3) In the realm of rehabilitation therapy, robotics play a crucial role in helping patients regain motor functions following strokes, spinal cord injuries or orthopaedic surgeries. Devices like robotic exoskeletons and motion-guided therapy systems provide consistent, repetitive movements that are vital for neuro-muscular recovery — often surpassing the capabilities of manual therapy. These systems also enable real-time monitoring and adaptive treatment planning, offering a more individualized and effective rehabilitation process.

(4) Hospital automation is another rapidly expanding frontier. Robots are increasingly being deployed to perform routine yet essential functions such as medicine delivery, room disinfection and food distribution. During the COVID-19 pandemic, their use in contactless service delivery proved invaluable in reducing exposure risks and maintaining stringent hygiene protocols. The advent of diagnostic robotics further underscores the transformative power of AI in medicine. These intelligent systems analyse medical data and imagery with exceptional accuracy, facilitating early detection of conditions such as cancer, cardio-vascular disease and diabetes. By enhancing diagnostic speed and reliability, they significantly contribute to timely and effective intervention.

(5) In the field of geriatric care, assistive robots are being developed to support elderly individuals with medication reminders, vital sign monitoring and social engagement. These robots offer not only physical assistance but also emotional support, helping combat loneliness and cognitive decline — especially for those living alone or with limited human interaction.

(6) While the integration of robotics into healthcare does pose challenges — such as substantial implementation costs, the need for specialized training and concerns about diminished human connection — the long-term advantages far outweigh these limitations.

(7) As healthcare systems worldwide strive for greater accuracy, efficiency and inclusivity, robotics stands out as a catalyst for innovation. Its expanding role — from surgical precision to hospital automation and personalized patient care — heralds a future where technology and empathy coalesce to create a more advanced and humane healthcare ecosystem. (427 words)