Conservation

Correct answer: A. Combined use of in-situ and ex-situ conservation

Species conservation can use both natural habitat protection and outside support. Exam tip: connect combined approach with integrated conservation.

Correct answer: B. Providing safe connectivity through a wildlife corridor

Wildlife corridors help habitat connectivity and safe movement. Exam tip: write corridors as a solution to fragmentation.

Correct answer: C. Native biodiversity and habitat structure may be affected

Alien plants can suppress native species. Exam tip: write the importance of native species in restoration.

Correct answer: D. Balance of conservation and sustainable use

Biosphere reserves try to balance nature and human needs. Exam tip: treat sustainable use as the key term.

Correct answer: A. Bank erosion, water temperature and food chain may be affected

Riverside vegetation helps maintain river habitat quality. Exam tip: study the river and its banks together.

Correct answer: B. Habitat-based analysis will remain incomplete

Species conservation is incomplete without its habitat components. Exam tip: write species and habitat together.

Correct answer: C. Connectivity between separate populations may be low

Population connectivity can be important for genetic diversity. Exam tip: connect corridors with long-term conservation.

Correct answer: D. Direct pressure of human activities may increase

A buffer zone helps protect core habitat from outside pressure. Exam tip: understand buffer as a protective belt.

Correct answer: A. Grazing control and vegetation restoration

Overgrazing can harm vegetation and soil. Exam tip: connect grazing control with habitat conservation.

Correct answer: A. Control of vehicle number and speed

Fast vehicles can increase accidents and disturbance. Exam tip: write responsible tourism as a conservation measure.

Correct answer: B. Public awareness and rule-compliance training

The direct answer is B: public awareness and rule-compliance training. A conservation law gives rules, but the rules cannot work properly if local people do not know what is permitted, what is forbidden, and why protection matters. The reasoning is: law exists → people need to understand it → they need practical guidance → they are more likely to follow it and report violations. Option A, removing laws, would remove protection and make harmful activities easier. Option B is correct because awareness explains the law and training teaches its correct use. Option C, increasing poaching, directly harms wildlife and is the opposite of conservation. Option D, reducing habitat, destroys food, shelter, and breeding places, so it also weakens conservation. Awareness should be respectful and involve local communities, not merely threaten them. Memory cue: conservation succeeds when law and knowledge work together.

Correct answer: C. Combined assessment of water level, food and breeding sites

Water birds depend on water, food and safe breeding sites. Exam tip: look for many clues in wetland questions.

Correct answer: D. Because prevention, monitoring and restoration are also necessary

The direct answer is Option D: prevention, monitoring and restoration are also necessary. Repeated fires are not solved permanently by extinguishing each fire after it starts. Managers must find causes such as dry vegetation, careless burning, lightning, railway sparks or human negligence; create fire lines where suitable; maintain water and equipment; give warnings; patrol high-risk periods; and use early detection. After a fire, damaged soil, vegetation, wildlife shelter and breeding places may need restoration. Option A is wrong because fire is not always beneficial; repeated uncontrolled fire can destroy habitats and soil organisms. Option B is wrong because wildlife needs safe habitat for food, shelter and reproduction. Option C is wrong because hunting is only one possible threat; fire itself can be serious. Option D is correct because effective conservation includes prevention before the event, monitoring during risk periods and restoration afterward. Exam cue: for repeated hazards, write prevention, preparedness, response and recovery.

Correct answer: A. Investigate possible factors such as habitat quality, food, water availability, and disease

Even when there is no evidence of hunting, a population may decline because of habitat loss, shortage of food or water, disease, pollution, or climate change. Conservation research should therefore collect evidence and investigate these possible factors. Assuming hunting alone without evidence is not a scientific conclusion. Exam tip: in population-decline questions, prefer an evidence-based, multi-factor investigation.

Correct answer: B. Water pollution and effect on food chain

Chemicals can affect aquatic organisms and food chains. Exam tip: write pollution as an indirect threat too.

Correct answer: C. Community and cultural conservation

Sacred groves can protect local biodiversity through community beliefs. Exam tip: treat them as local conservation examples.

Correct answer: D. Plantation success may become weak

Planting trees is only the beginning of successful restoration or conservation. Young plants need sufficient water to establish roots, and they must be protected from grazing animals, trampling, fire, weeds, and other damage. Without care, many seedlings may dry out or be eaten before they grow into healthy trees. Therefore, planting alone cannot guarantee improved habitat quality or complete conservation. Its success may become weak when essential support is absent.

The words “always,” “immediately,” and “definitely” make the first three statements too absolute and scientifically unsupported. Conservation requires follow-up maintenance and protection as well as planting. Hence option D is correct: plantation success may become weak.

Correct answer: A. Ecological roles of birds, insects and small organisms will be ignored

Small organisms are also important in biodiversity and food chains. Exam tip: include all organism groups.

Correct answer: A. More photos alone do not show long-term success

Direct answer: Option A is correct. Camera-trap photographs are only one indicator, not complete proof of conservation success. Step by step: more photographs may result from more animals, better camera placement, greater activity near cameras or repeated images of the same individuals; meanwhile, declining habitat quality shows that food, shelter, water or breeding conditions may be worsening; therefore long-term success cannot be judged from photo numbers alone. Option A is correct. B is wrong because habitat quality is essential to sustained populations. C is wrong because monitoring reveals both progress and danger and should continue. D is wrong because declining habitat indicates that threats may remain. Reliable evaluation combines population trends, habitat condition and other evidence. Memory cue: one positive number cannot cancel an important negative habitat signal.

Correct answer: A. Habitat protection, corridors, awareness and quick support

The direct answer is Option A: habitat protection, wildlife corridors, awareness and quick support together form the most balanced response. Conflict may increase when habitats shrink, natural routes are blocked, animals search for food near settlements, waste attracts them, or people lack information and timely help. Protecting habitat reduces forced movement. Corridors connect separated habitats and allow safer movement. Awareness teaches people how to store food, avoid provoking animals and report sightings. Quick support can compensate affected families and safely respond to emergencies. Option A is correct because it addresses both ecological causes and community needs. Option B is wrong because blaming all wildlife does not solve the causes and is unfair. Option C is wrong because waste attracts animals and can increase danger and disease. Option D is wrong because cutting every habitat destroys biodiversity and often makes conflict worse. Memory cue: conflict needs habitat solutions plus community cooperation.

Correct answer: B. Wildlife may avoid water sources and behaviour may change

Disturbance at water sources can change wildlife activity. Exam tip: treat water and quietness as habitat components.

Correct answer: C. The habitat of herbivores and grassland birds will be neglected

Grasslands provide food, shelter and breeding areas for many herbivores and grassland-dependent birds. Excluding them from a conservation plan can therefore leave the habitats of these species unprotected. Climate does not change immediately as a direct result; ecological effects of neglecting grasslands generally develop over time. Exam tip: conservation plans must consider all habitats, including forests, grasslands and wetlands.

Correct answer: D. Informing the forest department or trained rescue team is more correct

Injured wildlife needs legal and expert help. Exam tip: write safe reporting as correct behaviour.

Correct answer: A. Natural cleaning of dead organic matter

The direct answer is A: natural cleaning of dead organic matter. Scavenger birds feed on dead animals and other organic remains. Step by step: an animal dies → its body becomes dead organic matter → scavengers consume and remove much of it → decomposition and nutrient cycling become easier → the surroundings are cleaner and disease risks may be reduced. Option A correctly identifies this ecological service. Option B, making river flow, is not the normal role of scavenger birds; river flow depends on water, slope, channels, and rainfall. Option C, making glaciers, is unrelated to birds and depends on long-term cold conditions and snow accumulation. Option D, deciding forest height, is not a biological function of scavengers; forest structure is influenced by vegetation, climate, soil, and disturbance. A decline in scavengers therefore creates concern about waste removal and ecosystem balance. Memory cue: scavengers clean nature’s leftovers.

Correct answer: A. Priority of wildlife peace and habitat

Tourism should be controlled under conservation. Exam tip: connect sustainable tourism with rules and quietness.