In preparing a site for surface mining and later restoration, why wouldengineers separate the topsoil from the deeper soil, rather than removingall soil at once and mixing it in a single pile?

Q: Which of the following is not an element of soil sustainability? О а. Green manures O b. Plowing C.…

A: Agricultural sustainability is characterized as a system's ability to maintain consistent levels of…

Q: Why would soil and water be added to a compost pile?

A: Compost refers to the organic material which is produced by the process of composting. Composting…

Q: Why Medium (Soil, water….etc) + nutrients (Na,K,N….etc) is very important? pls give very short…

A: The medium and nutrients both are important for proper growth of the plant. • The main purpose of a…

Q: All of the following are true about soil microorganismsEXCEPT:(a) They never affect or change the…

A: Answer- Soil microorganisms can be of different types starting from bacteria, actinomycetes, fungi,…

Q: Matching Type. Match column A with the correct answer in column B. Write only the letter of correct…

A: Matching Type. Match column A with the correct answer in column B. Write only the letter of correct…

Q: The infiltration rate of silt loam soil is higher than that of a loamy sand. O True O False

A: The infiltration rate is the measurement of the water entering capacity of the soil. The unit of…

Q: the sabouraud and nutrient agar plates

A: Sabouraud agar or Sabouraud dextrose agar (SDA) is a type of agar growth medium containing peptones.…

Q: There is a general statement that "organic matter content of Pakistani soil is low" ,why?

A: Organic matter is an important component of soil. It increases water holding capacity of the soil by…

Q: The culture medium can be reffered to as a 'highly enriched labotary soil.justify this statement?

A: Culture medium:   It is also known as a growth medium where specific microorganisms and plants will…

Q: organic component of soil formed by the decomposition of leaves and other plant material by soil…

A: The outer loose layer surrounding Earth is known as soil. Soil is a mixture of different compounds.…

Q: WHAT IS THE BEST FIELD MANAGEMENT PRACTICE FOR BLACK, RED, AND GREY SOILS?

A: Answer :  Management Practices for Improving Soil Health:- i) Reduce Inversion Tillage and Soil…

Q: Seed bank plays an important role in Ex-situ conservation, is it true?

A: Plants are the living organisms which synthesize their own food by photosynthesis. In photosynthesis…

Q: Describe soil as a microbial habitat.

A: The sum total of living organisms inhabiting the soil constitutes soil habitat. bacteria,…

Q: Natural pyritic deposits, such as underground coal seams, donot contribute to acid mine drainage;…

A: The pyrite or fool’s gold or iron pyrite is an iron disulfide mineral that occurs naturally. The…

Q: What part of the soil is most microbially active?

A: Microbial activity in Soil : Soil microbial activity that reflects microbiological processes of soil…

Q: O Sodium nitrate 17. Soil is composed of fragments of rocks and decaying vegetation. O True O False…

A: Soil is a part of earth called as pedosphere and is a natural resource. It contains a mixture of…

Q: If a soil when sampled from the field weighed 30g(fresh weight) and after oven drying at 105°C…

A: The moisture content of the soil is a very important parameter. The moisture content of soil depends…

Q: Phytoremediation, mycoremediation, bioinventing, biobleaching, landfarming, biorector, composting,…

A: Various techniques are used in order to balance the imbalance caused in the environment.  The use of…

Q: Which region of soil is the most microbially active?

A: The microbe is a term used for microorganisms like bacteria, fungi, viruses, and protozoans. These…

Q: Explain why most microorganisms are present in the upper layers ofthe soil.

A: Abiotic and biotic constituents make up the biosphere. The tiny, minute organisms that cannot be…

Q: When you inspect the environmental plates, you will probably notice that there is more growth from a…

A: The growth of microbes requires a certain level of water activity. It is described as the amount of…

Q: What are  three moistures condition for determining soil consistence

A: The measure of the degree of the cohesion and adhesion between the soil particles describes about…

Q: How plastic is harmful for the soil. State scientific reason for it.

A: The environment that we live in consists of resources for the sustenance of all living organisms.…

Q: How carbonation increases the solution effect of water in rock soil system?

A: Weathering is the process by which the breaking down and dissolution of soils and minerals on the…

Q: In which type of soil is nutrient leaching a morecommon problem, sandy or clay soil?

A: Ans: Soil Nutrient leaching: It is the process on which the nutrients dissolved in soil move…

Q: What type of soil will have higher percentage of leaching and what could be the causes? *

A: The loose surface layer that covers the majority of land is referred to as soil. It is made up of…

Q: . Which one of these soils would have a higher infiltration rate?

A: Soil is formed by the fragmentation and erosion of rocks by weathering, the action of rain-water,…

Q: factors affecting the activities of soil microorganisms?

A: The complex microbial habitats with some niches and numerous microenvironments are called soil. The…

Q: types

A: Thermosetting plastic is made up of cross-linked chain polymers. Thermoplastics, on the other…

Q: Decomposing organic matter in soil is called______ . a. clay d. silt b. humus e. sand c. topsoil f.…

A: Introduction In the soil, there are numerous bacteria and other microbes that can breakdown organic…

Q: What is the importance of vermicompost application in the improvement of acid soils?

A: Acidic soils can be defined as it is "sour" and acidity is the characteristic of soils that have a…

Q: Isn’t soil just lifeless dirt?

A: ANSWER: No, soil cannot be attributed as lifeless dirt since it is an integral component of the…

Q: Human Activity Effects on Soil Quality Effects on Soil Quantity

A: Humans affect the environment in numerous ways: Rising population, contamination, consuming…

Q: Which heats the soil more, covering it with clear plastic or black plastic? Why?

A: The growth of plants depends upon various factors such as soil, water, air, and sunlight. Soil…

Q: What appears to have been the limiting factor for microbial growth and activity in soil?

A: Soil micro-organisms are a very crucial part of the soil. They have several roles to play:…

Q: List two advantages of using turbidity as a measure ofcell growth.

A: Cell growth, also known as cell proliferation is the increase in number of cells which occur due to…

Q: One of the techniques for absolute dating of wood using annual pairs of growth rings is called:…

A: The annual growth rings are formed on a single year consisting of spring and summer wood. The spring…

Q: How long does it take for one inch of topsoil to form

A: Topsoil is the layer of soil that is present on the top or uppermost surface. Its thickness is…

Q: Malathion is an organophosphate pesticid that is used often in residential and commercial…

A: Organophosphates are the most widely used insecticides and pesticides today. They are used in…

Q: The percentage of pore space of a soil with a bulk density of 1.2 Mg/m and a particle density of…

A: The percentage of soil volume filled by pore spaces is known as porosity. This characteristic…

Q: What is the difference between settling and sedimentation process in water treatment plant

A: Water treatment is defined as any process that will improve the water quality by making it…

Q: What group of microorganisms dominate unpolluted soil? polluted soil?

A: The soil may include microorganisms such as bacteria, actinomycetes, fungi, algae, protozoa and…

Q: The addition of ammonium caused heavy phytoplanktongrowth in the cultures, but the addition of…

A: . The phytoplanktons occupy the position of the primary producer in an ecosystem. It is autotrophic,…

Q: . Why was it necessary to make sure that chemicals could not movethrough the soil from one plant to…

A: Researchers perform an experiment on pea plants to know whether drought-stressed plants communicate…

Q: Explain soil profile. What master horizon is characterized by organic debris in various stages of…

A: Soil is a mixture of organic matter, minerals, gases, liquids, and organisms that together support…

Q: Explain the principles of soil conservation and providesolutions to soil erosion and land…

A: Humans have caused damage to soil in the form of soil erosion and exhaustion.