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

Checking of reradiating heat by atmospheric dust, O₃, CO₂ and water vapour is Greenhouse effect.
The greenhouse effect is a process that occurs after energy from a planet's host star goes through the planet's atmosphere and heats the planet's surface.
Greenhouse gases can be divided into two types, direct and indirect. Gases that can directly absorb solar energy are direct greenhouse gases, e.g., water vapor, carbon dioxide and ozone.

Fuel wood is still a very important source of energy for millions of Indians living in villages.
Fuelwood consumed in developing nations is used for heating and cooking by individual households, although considerable volumes of fuelwood and charcoal are used for industrial purposes.
Wood is easy to store and use, it does not require very much processing, and it is a renewable resource when harvested sustainably.

Siberian Crane is a regular visitor of Bharatpur (Rajasthan) bird sanctuary.
Keoladeo National Park or Keoladeo Ghana National Park (formerly known as the Bharatpur Bird Sanctuary) is a famous avifauna sanctuary in Bharatpur, Rajasthan, India, that hosts thousands of birds, especially during the winter season.
It is the wintering ground for the rare Siberian crane and habitat for large numbers of resident nesting birds.

Biosphere is Area occupied by living beings.
The term "biosphere" was coined by geologist Eduard Suess in 1875, and he defined it as the place on Earth's surface where life dwells.
The biosphere is virtually a closed system about matter, with minimal inputs and outputs. Regarding energy, it is an open system, with photosynthesis capturing solar energy at a rate of around 130 terawatts per year. It can also be termed the zone of life on Earth.

An intrinsic property of a natural and complete ecosystem, is Self-sustainability.
Self-sustainability and self-sufficiency are overlapping states of being in which a person or an organization needs little or no help from, or interaction with, others. Self-sufficiency entails the self being enough, and a self-sustaining entity can maintain self-sufficiency indefinitely.
It is a type of sustainable living in which nothing is consumed other than what is produced by self-sufficient individuals.

Forests take part in control of atmosphere pollution, prevention of soil erosion and maintenanace of natural balance.
Forests are the predominant terrestrial ecosystem of Earth, and are found around the globe. More than half of the world's forests are found in only five countries.
Forests are a stabilising force for the climate. They regulate ecosystems, protect biodiversity, play an integral part in the carbon cycle, support livelihoods, and supply goods and services that can drive sustainable growth.

Calcium is locked up in the shells of molluscs.
The mollusc shell is typically a calcareous exoskeleton which encloses, supports and protects the soft parts of an animal in the phylum Mollusca, which includes snails, clams, tusk shells, and several other classes.
The calcium carbonate layers in a shell are generally of two types: an outer, chalk-like prismatic layer and an inner pearly, lamellar or nacreous layer. The layers usually incorporate a substance called conchiolin, often to help bind the calcium carbonate crystals together.

Solar energy is a rich source of energy but never causes atmospheric pollution.
Solar energy is radiant light and heat from the Sun that is harnessed using a range of technologies such as solar power to generate electricity, solar thermal energy, and solar architecture.
It is an essential source of renewable energy. It will increase countries' energy security through reliance on an indigenous, inexhaustible, and mostly import-independent resource, enhance sustainability, reduce pollution, lower the costs of mitigating global warming.

The factors that influence the quantity of municipal waste generated include Collection frequency, Geographic location and Salvaging and recycling.
Municipal solid waste includes all items from homes and businesses that people no longer have any use for. These wastes are commonly called trash or garbage and include items such as food, paper, plastics, textiles, leather, wood, glass, metals, sanitary waste in septic tanks, and other wastes.
Waste quantity, generation location and characteristics such as percentage content of moisture, biodegradable organic matter, calorific or heating value, fats and oils, sugars and carbohydrates, transportability, particle size, any periodic variations, and potential contamination are important factors.

Greenhouse effect is related to Global warming.
The greenhouse effect is a process that occurs after energy from a planet's host star goes through the planet's atmosphere and heats the planet's surface.
The global warming potential (GWP) of a greenhouse gas is calculated by quantifying the lifetime and the efficiency of greenhouse effect of the gas.