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

Monera kingdom contains species that can convert ammonia to nitrite and nitrite to nitrate.
Monera "single" is a biological kingdom that is made up of prokaryotes. As such, it is composed of single-celled organisms that lack a nucleus.
Nitrobacter plays an important role in the nitrogen cycle by oxidizing nitrite into nitrate in soil and marine systems. Nitrobacter uses energy from the oxidation of nitrite ions, NO₂^-, into nitrate ions, NO₃^-, to fulfill their energy needs. Nitrobacter fixes carbon dioxide via the Calvin cycle for its carbon requirements. Nitrobacter belongs to the Alphaproteobacteria class of the Pseudomonadota.

The precipitation reaching the ground distribute in different ways as all of them are given in the options.
1. Evaporate and reach the atmosphere
2. Infiltrate the soil
3. Detained in the catchment area
4. Become a form of ran-off
Precipitation is any product of the condensation of atmospheric water vapour that falls from clouds due to gravitational pull. Precipitation occurs when a portion of the atmosphere becomes saturated with water vapour so that the water condenses and "precipitates" or falls.

The criteria for the selection of species under ex-situ conservation is Vulnerability of the species to extinction.
Ex-situ conservation means, "off-site conservation". It is the process of protecting an endangered species, variety or breed, of plant or animal outside its natural habitat.
Ex-situ management can occur within or outside a species' natural geographic range. Individuals maintained ex-situ exist outside an ecological niche.
Ex-situ conservation, while helpful in humankind's efforts to sustain and protect our environment, is rarely enough to save a species from extinction.

The factors that must be considered in the on-site storage of solid wastes are type of container, Location of container and Public health and collection.
Onsite storage means the temporary collection of waste at the household level. Waste must be stored in proper containers, where it should be located after segregation for health and proper hygine.
Waste handling depends on types of waste materials separated for reuse and recycling.

The main subdivision of global environment which includes all water is termed as Hydrosphere.
The hydrosphere is the combined mass of water found on, under, and above the surface of a planet, minor planet, or natural satellite.
It has been estimated that there are 1.386 billion cubic kilometres of water on Earth. This includes water in gaseous, liquid and frozen forms as soil moisture, groundwater, oceans and seas, lakes, rivers and streams, wetlands, glaciers, ice and snow cover on Earth's surface; vapour, droplets and crystals in the air; and part of living plants, animals and unicellular organisms of the biosphere.

The best source of renewable energy is Trees.
Renewable energy is energy from renewable resources that are naturally replenished on a human timescale. Renewable resources include sunlight, wind, the movement of water, and geothermal heat.
Plant energy is produced by crops specifically grown for use as fuel that offer high biomass output per hectare with low input energy.

Spraying DDT produces pollution of Air, water and soil.
Dichlorodiphenyltrichloroethane, commonly known as DDT, is a colorless, tasteless, and almost odorless crystalline chemical compound, an organochloride.
DDT is a persistent organic pollutant that is readily adsorbed to soils and sediments, which can act both as sinks and as long-term sources of exposure affecting organisms. DDT is highly hydrophobic and nearly insoluble in water thus causing water pollution also.

Wild life is destroyed most when its natural habitat is destroyed.
Wildlife refers to undomesticated animal species, but has come to include all organisms that grow or live wild in an area without being introduced by humans.
The habitat of any given species is considered its preferred area or territory. Many processes associated with human habitation of an area cause loss of this area and decrease the carrying capacity of the land for that species.

Ozone Layer occurs in Stratosphere.
The stratosphere is the second layer of the atmosphere of the Earth, located above the troposphere and below the mesosphere.
The increase in temperature with altitude is a result of the absorption of the Sun's ultraviolet (UV) radiation by the ozone layer. The oxygen atom product combines with atmospheric molecular oxygen to reform O₃, releasing heat. The rapid photolysis and reformation of ozone heat the stratosphere, resulting in a temperature inversion.

A biogeochemical cycle without an atmospheric component is Phosphorus.
A biogeochemical cycle is the pathway by which a chemical substance cycles the biotic and the abiotic compartments of Earth.
The six most common elements associated with organic molecules like carbon, nitrogen, hydrogen, oxygen, phosphorus and sulphur take a variety of chemical forms and may exist for long periods in the atmosphere, on land, in water, or beneath the Earth's surface.
Phosphorus is used to make nucleic acids and the phospholipids that comprise biological membranes.