Environmental Science In Agricultural MCQ Question and Answer | Agriculture MCQ Question

Animal species should be protected because they are Man cannot recreate a lost species.
Animals and plants aren't just valuable for their own sake, they're also part of a wider natural environment that may provide food, shelter, water, and other functions, for other wildlife and people.

Natural water that is exposed to limestone is Calcareous water.
When water percolates through deposits of limestone, chalk or gypsum, which are largely made up of calcium and magnesium carbonates, bicarbonates, and sulphates, then that water is termed calcareous water.
It is not a health risk but is a nuisance because of mineral buildup on plumbing fixtures' and poor soap and or detergent performance.

Biotic factors are all living organisms that influence other organisms.
Biotics describe living or once living components of a community; for example organisms, such as animals and plants.
It is a living organism that shapes its environment. In a freshwater ecosystem, examples might include aquatic plants, fish, amphibians and algae. Biotic and abiotic factors work together to create a unique ecosystem.

Soil particles determine its Texture.
Soil texture (such as loam, sandy loam or clay) refers to the proportion of sand, silt and clay-sized particles that make up the mineral fraction of the soil.
The texture of a soil determines soil water-holding capacity, permeability and soil workability.
Sand, silt, clay and organic matter particles in a soil combine to form larger particles. Soil structure is the arrangement of the soil particles into aggregates of various sizes and shapes.

The most important cause of the loss of biodiversity is Climate change.
Climate change is one of the main drivers of biodiversity loss, but destruction of ecosystems undermines nature's ability to regulate greenhouse gas (GHG) emissions and protect against extreme weather, thus accelerating climate change and increasing vulnerability to it.
Loss of biodiversity can lead to land degradation, effects on water supply and changes in farming productivity.

Kanha National Park is located in Madhya Pradesh.
Kanha Tiger Reserve, also known as Kanha-Kisli National Park, is one of the tiger reserves of India and the largest national park in the state of Madhya Pradesh.
The present-day Kanha area is divided into two protected areas, Hallon and Banjar, of 250 and 300 km², respectively. Kanha National Park was created on 1^st June 1955 and was designated a tiger reserve in 1973. Today, it encompasses an area of 940 km² in the two districts Mandla and Balaghat.
The park hosts Bengal tiger, Indian leopard, sloth bear, barasingha and dhole. It is also the first tiger reserve in India to officially introduce a mascot, Bhoorsingh the Barasingha.

Sudden mass death of fish is more likely to occur in Eutrophic lakes.
A eutrophic condition is a term describing a situation where a water body has lost so much of its dissolved oxygen that normal aquatic life begins to die off.
Eutrophic conditions form when a water body is "fed" too many nutrients, especially phosphorus and nitrogen.

Making numerous sanctuaries will help most in biosphere in the conservation of wildlife.
A Wildlife Sanctuary is a protected area of importance for flora, fauna, or features of geological or other interest, which is reserved and managed for conservation and to provide opportunities for study or research. The Wild Life (Protection) Act, of 1972 provides for the establishment of Protected Areas in India.
Sanctuaries help in protection of endangered species of plants and animals in their natural environment.

Soil erosion can be prevented by good plant cover.
Soil erosion is the denudation or wearing away of the upper layer of soil. It is a form of soil degradation.
The roots of the plants bind the soil together, and interweave with other roots, forming a more solid mass that is less susceptible to both water and wind erosion.
Vegetation acts as an interface between the atmosphere and the soil. It increases the permeability of the soil to rainwater, thus decreasing runoff. It shelters the soil from winds, which results in decreased wind erosion, as well as advantageous changes in microclimate.

The common source of energy in our villages is wood and animal dung.
Dry dung fuel is animal feces that has been dried to be used as a fuel source. It is used in many countries. Using dry manure as a fuel source is an example of reuse of excreta.
Wood fuel is a fuel such as firewood, charcoal, chips, sheets, pellets, and sawdust. The use of wood as a fuel source for heating is much older than civilization.