The question asks to identify the Indian state with the highest percentage of forest cover as per the India State of Forest Report (ISFR) 2017. This requires knowledge of the findings of the ISFR 2017 report, specifically regarding forest cover percentages by state.
Correct Option: C) Mizoram
As per the India State of Forest Report (ISFR) 2017, Mizoram had the highest percentage of forest cover among all Indian states, with 85.41% of its geographical area under forest cover. This makes it the correct answer.
The question asks to identify the forest type associated with a Mediterranean climate. This requires knowledge of the characteristics of Mediterranean climate and the types of vegetation that thrive in such conditions.
Correct Option: B) Temperate Evergreen Forest
The question asks to identify the animal that is NOT typically found in the Tundra biome. To answer this, one needs to have knowledge about the characteristic fauna of the Tundra and the habitats of the animals listed in the options.
B) Lynx — Lynx are primarily inhabitants of boreal forests (taiga) and temperate forests, not the open, treeless Tundra. Their hunting strategies and prey species are more suited to forested environments.
UPSC - 2021
The question asks to identify the biogeochemical cycle where the weathering of rocks is the primary source of nutrient release. We need to examine the main reservoirs and processes for each given cycle.
Correct Option: C) Phosphorus cycle. The phosphorus cycle is unique among the major biogeochemical cycles because it does not have a significant atmospheric gaseous phase. Its primary reservoir is the Earth's crust, and phosphorus is released into the environment through the slow process of weathering of phosphate-bearing rocks.
The question asks about the main limiting factors in terrestrial ecosystems. Limiting factors are environmental conditions that restrict the growth, abundance, or distribution of organisms or populations within an ecosystem. We need to identify which of the given options are the most critical for terrestrial life.
B) Moisture and temperature are indeed the main limiting factors for terrestrial ecosystems. The availability of water and the prevailing temperature range profoundly influence the distribution of biomes (e.g., deserts, rainforests, tundras) and the types of plants and animals that can survive in them. For instance, deserts are defined by low moisture and often high temperatures, while tundras are characterized by low temperatures and frozen moisture.
The question asks to identify practices that fall under "Conservation Agriculture". We need to evaluate each given statement against the principles of Conservation Agriculture.
Based on the analysis, statements 2, 4, and 5 are definitely core components of Conservation Agriculture. Statement 1 (avoiding monoculture) is also a part of crop diversification, but options usually present the most direct and universally accepted pillars. Let's re-evaluate statement 1 in context of the options.
The three main pillars of Conservation Agriculture are:
Statement 1, "Avoiding the monoculture practices," directly falls under species diversification. So, 1, 2, 4, and 5 are all valid practices under Conservation Agriculture. However, we need to choose the best fit from the given options.
Let's check the options again with this understanding:
Comparing the options, option C includes the most direct and universally accepted core principles of Conservation Agriculture. While statement 1 is aligned with CA, statements 2, 4, and 5 are the most fundamental and distinct practices.
Correct Option: C) 2, 4 and 5