Co In the given figure, explain why does the CO2 concentration increase in the top-soil horizon (A) and then it decreases in subsoil horizons Bw and Bk

Q: Energy pyramid 2. Analyze this trophic pyramid. In your words, explain the 10% rule regarding the…

A:

Q: Identify one technology which would cause a significant reduction in the primary pollutants…

A: Introduction - Pollution from automobiles, power stations, industrial boilers, refineries, and…

Q: How does our ability to model global primary production compare to atmospheric measurements of CO2?…

A: The primary source of carbond ioxide released to the atmosphere by human activities derives from…

Q: Fertilization & deposition Crop export Watershed Leaching & Runoff Mineralization The figure above…

A: Given rates are, Rates of Fertilisation and deposition= 4000 Mg yr-1 Rates of Mineralistion=4900 Mg…

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: How do the biophysical interactions in a catchment when impacted by humans produce Salvinia and…

A: The unwanted vegetation in the water bodies is termed aquatic weeds. The aquatic weeds have a…

Q: The key source of food for organisms living on the abyssal plain is.. O a) Descending photosynthetic…

A: Any community of organisms in the deep sea that share a common environment is referred to as a deep…

Q: Net primary production per unit area is likely to be highest in which of the following ecosystems?a.…

A: Answer is d.) tropical rain forests.

Q: Some of the problems associated with intensive irrigationinclude all of the following except(A) soil…

A: Intensive irrigation means to provide too much water to the plants.  Option A is one of the problems…

Q: Some of the organic material manufactured in estuarine communitiesis exported to other ecosystems.…

A: Answer: Introduction: Estuaries means specific regions where the river and seawater combine. The…

Q: Hawks Snakes Owls D Crickets Mice Grass A (Not drawn to scale) Letters A, B, C, and D represent…

A: As we know plants are only organisms which can synthesise/ produce their own food , thus they are…

Q: Does iron limit primary production in some parts of the oceans?

A: Oligotrophic lakes have very clear water content, transparent surface, very deep, and less growth of…

Q: Soil organic matter (SOM) samples have charge that is pH-dependent, and measurements for the…

A: According to the data provided in the question: Soil organic matter (SOM) CEC = 150 cmolt) /bg…

Q: Why are the OMZs expanding and what are the likely impactson nutrient cycles?

A: Nutrient cycles are the cycles which involves the circulation of organic and inorganic matter within…

Q: In shallow coastal ecosystems dominated by seagrasses, nutrients limit primary production under low…

A: Hi dear,here is answer what you want.hope you like this answer .   Oligotrophic refers to a lake or…

Q: Discuss how the biogeochemical cycle and the cycle of nutrient elements essential to life's…

A: Biogeochemical cycles mainly refer to the movement of nutrients and other elements between biotic…

Q: In the following diagram, fill in the components of chemical cycling and nutrient flow.

A: The abiotic and the biotic constituents of the biosphere co-exist with each other. The balance…

Q: Discuss potential sources of biomass and biofuels that can be found in Mindanao particularly in…

A: The term biomass refers to natural matter that comes from plants and animals and it is a sustainable…

Q: Space is an example of a density. O Independent / abiotic O Independent/biotic O Dependent / abiotic…

A: The growth of the population depends on several factors. Some of the factors depends on the density…

Q: 5. if gross primary production of a grass was 100 kcals, how many k cals would there be in trophic…

A: A trophic pyramid allows one to study and understand how the energy flows from one trophic level to…

Q: Deserts and semidesert scrub cover about the same amount of surface area as tropical rain forests…

A: BASIC INFORMATION BIODIVERSITY  It is basically the variety of the lives present on the earth  The…

Q: Directions: Label the processes of ACTIVITY 2 phosphorus cycle from A to J. Choose the correct…

A: Introduction :- Phosphorus is an essential nutrient for all living organisms. It is an important…

Q: Lastly, notice the yellow graph for "Net Exports": in 2008 it was about +400, meaning the US…

A: Biodiesel is a renewable fuel obtained from biotic components.

Q: In what ways do human activities influence the: a) Carbon Cycle?   b) Nitrogen Cycle?

A: Nitrogen and carbon cycle forms the most important cycle after water cycle in this earth. The…

Q: . With consideration on the plankton density and other parameters, explain the difference or…

A: Gross primary productivity is the amount of fixation of carbon dioxide in the air with the help of…

Q: Approximate Amount of Water Needed to Produce One Pound of Food -about 50 gallons beef lentils…

A: Water is one of the most essential nutrients that are needed by organisms for their growth and…

Q: Why is release of sulfide from oxygen minimumzones infrequent, occurring at times of…

A: Oxygen minimum zones (OMZs) are the regions where the oxygen level is depleted at intermediate…

Q: In a rice paddy in Southeast Asia, the insolation energy is 6,000,000 calories/m2/day. The gross…

A: Primary producers are all green plants which synthesize their food (carbohydrate) from sunlight with…

Q: Describe the following nutrient cycles. Should be comprehensive yet concise. 1. carbon cycle 2.…

A: Introduction :- The carbon cycle depicts the continuous movement of carbon atoms from the atmosphere…

Q: excess primary production in downstream lakes or estuaries. In what class of ecosystem services is…

A: The benefits human beings obtain from the natural environment and natural ecosystems are known as…

Q: Describe to ocean’s biological C pump and how it works. What is the fate of this carbon and can…

A: Global warming is a phenomenon in which the earth's temperature rises constantly due to greenhouse…

Q: is a proximate value for particle density of most soils. O 2.65 g/cm3 O2.66 g/cm3 O 2.55 g/cm3 O…

A: PARTICLE DENSITY -  particle density is the density of the solid  particles that collectively make…

Q: -If a loam soil, silt loam soil and a sandy loam soil are at field capacity, the percent moisture…

A: The availability of water content is different in various loam forms. The details are discussed…

Q: SCIENCE, TECHNOLOGY, AND SOCIETY In many countries,irrigation is depleting aquifers to such an…

A: Groundwater resources have played a critical role in meeting the demands of water in traditionally…

Q: After prairie grassland is plowed, what explains the observed large release of carbon dioxide out of…

A: Tillage(plowing) is the act of loosening and turning the soil.

Q: Provide one example for each of the following from the sulfur cycle: a biotic flux- a natural…

A: The sulfur cycle is the biogeochemical cycle of the element sulfur taking place in our planet. Flux…

Q: The air in soils is normally higher in CO2 and lower in O2 than atmospheric air. TRUE OR FALSE

A: The quantity of oxygen in soil air is less than atmospheric air and the quantity of carbon dioxide…

Q: Gaseous nutrient cycle and sedimentary nutrient cycles have their reservoir . Name them. Why is a…

A: The pathways by which various biotic and abiotic elements are circulated throughout the environment…

Q: Discuss the concept of “Maximum Sustainable Yield” and the assumptions behind this concept.

A: Question -   Discuss the concept of “Maximum Sustainable Yield” and the assumptions behind this…

Q: What is the range of values for percentage of emissions from transport of food to retailers…

A: The range of values for percentage of emissions from transport of food to retailers (delivery) lies…

Q: il fuel use also decreased in the post-War era, reducing greenhouse gases.

A: Introduction :- Fossil fuels are made from decomposing plants and animals. These fuels are found in…

Q: Trophic levels  Part A) In food chains and webs, what trophic level must you have more of than…

A: A) The trophic level of an organism means the position it occupies in a concerned food chain or food…

Q: Which trophic level is most affected by fires in Gorongosa? Explain. They gave me four options.…

A: Gorongosa National park is home to a large diversity of animals and plants, some of which are found…

Q: A wastewater treatment plant discharges of effluent into a stream. Just upstream from the discharge…

A: Wastewater (sewage) is polluted water which includes all harmful liquid, solid or gaseous substances…

Q: Form of energy Kcal/m/yr Efficiency of energy transfer (%) Sunlight 600,000 n/a Chemical energy in…

A: Answer:  Note- Answer of a and b questions are given only. Please upload c and d questions…

Q: a. Nutrient cycles are also referred to as biogeochemical cycles. EXPLAIN the term biogeochemical…

A: The nutrient cycle is the Pathway of exchanging organic and inorganic matters between biotic and…

Q: Thelargest reservoir of phosphorus in most ecosystems is phosphorus:a. inthe atmosphere.b.dissolved…

A: Phosphorous is one of the biogenetic nutrients. It is a major constituent of nucleic acids, energy…

Q: Immediately after deforestation, which of the following processes might you expect to increase with…

A: Among the given options, we would expect  leaching denitrification to set in.

Q: Design a concept of bioremediation related to earthworm

A: Bioremediation is that the use of microbes to wash up contaminated soil and groundwater. Microbes…

Microbial Physiology

Microbial physiology is the branch of microbiology that is associated with studying the physiology of fungi, bacteria, and viruses. It is an important field of science concerning functional genomics and metabolic engineering.

Chemotaxis

The organism’s movement in a particular direction as a response to certain chemicals that are available in the environment is defined as chemotaxis. In brief, it can be defined as the occurrence of an organism’s movement in response to a certain chemical stimulus.