Lake is an excellent ecological system for microbes. According to this chart, in this particular lake, the Hydrogen sulfide (H25) concentrations at a depth of 9 meters is about

Q: You have the intention to build a house in a rural community with limited facilities, hence you need…

A: The septic tank is a chamber dug underground and is composed of plastic, fiberglass, or concrete via…

Q: Water is less dense as a solid than as a liquid. How does this property typically affect a lake…

A: Density can be defined as the mass per volume.Average density of an object can be defined as mass…

Q: Plants absorb several ions and water from soil. For this reason, it is necessary for the soil to…

A: The sandy soils due to their low organic matter content, they have a limited buffering capacity with…

Q: A lake has a pH of 7.7 and contains many species of plants and animals. What can be concluded about…

A: The pH of pure water is 7. Here, the pH of the lake water is 7.7 which is slightly basic in nature…

Q: Photosynthetic organisms are normally considered the most important primary producers; which…

A: Organic carbons are synthesized by producers by photosynthesis using CO2 (atmospheric or aqueous)…

Q: Thermohaline circulation refers to a network of currents driven by density changes caused by…

A: Biosphere is the entire area on the earth along with its atmosphere in it. All the organisms and the…

Q: if fish ina certain lake are reported to contain 4.0 ppm by weight DDT,(a) what percentage of the…

A: Parts per million is a way to measure concentration, it refers when a part is some substance is…

Q: Based on the information provided from the report of the West Virginia Chemical Spill and The Human…

A: A tonnes of anthropogenic circumstances leads to a great deal of pollution, not only to the air but…

Q: The diagram shown here illustrates a typical marine food web that can be contaminated with mercury.…

A: When two or more than two food chains interconnect with each other to form a food chain network, it…

Q: Design an experiment to solve the following problem:Determine the rate of methanogenesis (CO2 + 4H2…

A: Methanogenesis is process of methane formation by methanogens (microorganisms can produce methane).…

Q: The relative humidity in pore spaces is high in soils in tropical areas but low in desert soils.…

A: The tropics are warm all year, averaging 25 to 28 degrees Celsius. Desert surfaces receive a little…

Q: Microbial respiration of arsenate has been found to: A. influence the mobility or transport arsenic…

A: Respiration is the process of the metabolism of biological molecules to generate energy. Energy…

Q: Foodborne illness is associated with many different types of foods. Explain what the oxygen…

A: Microbes are the mainly disease causing agents associated with the food or any other infective…

Q: The graph shows how dissolved 02 and CO2 levels changed in a pond over a 24-hour period. What caused…

A: Answer: Introduction: The main reason for oxygen exhaustion in a water body is from additional algae…

Q: What is the significance of the "Vernadsky Paradox" and the concept "that the earth is an…

A: Vernadsky was a mineralogist and geochemist who was responsible for the popularization of the…

Q: How would you prove that dissolve oxygen is an important yardstick of water pollution

A: Dissolved oxygen refers to the level of oxygen which is free and non compounded, present in the…

Q: Which of the following pairs of words are most clearly opposites? a. biodegradable, recalcitrant b.…

A: Answer is a.) biodegradable ,recalcitrant.

Q: Level of Dissolved Water Temperature (°C) c. If the trend continues as shown in the data, what would…

A: Dissolved oxygen means the amount of oxygen present in water. Dissolved oxygen of 4-5 ppm is…

Q: Why would increasing energy efficiency in homes and businesses across the united states reduce the…

A: In United States, energy efficiency could be increased by  1. Turning thermostats down in winter and…

Q: The toxicokinetics of a xenobiotic depends very much on the nature and the structure of the…

A: Xenobiotics are foreign organic or inorganic compounds that are not naturally present in an…

Q: Most living organisms cannot survive at temperature above 450C. How are some microbes able to live…

A: The organisms which can survive at higher temperatures  are known as thermophiles which have a…

Q: Receiving effluents from what the biochemical oxygen demand may not be good index for pollution for…

A: Pollution is making Earth dirty by adding unpleasant or harmful substances. The things which pollute…

Q: In what environments might the following organisms be found? thermophile

A: The microbial species have their own temperature range, wherein they grow and multiply rapidly. The…

Q: A given municipal wastewater can be treated with the following methods. N + AS, Activated sludge…

A: Lime It works as a neutralizer and precipitant of chrome, copper, and heavy metals present in…

Q: Discuss briefly the following:(a) Radioactive wastes(b) Defunct ships and e-wastes(c) Municipal…

A: Radioactive waste Radioactive waste is a type of waste that is very hazardous due to the presence…

Q: Based on the graph, at what depth do we find the thermocline of this lake? Thermocline in a…

A: The graph depicts the relationship between temperature and the depth of stratified lake.

Q: REGULATORY REGULATION OF THE MAXIMUM CONTENT OF THE HAZARDOUS SUBSTANCE IN THE ATMOSPHERE, IN THE…

A: Emission standards are determined by air quality management and the more efficient means of…

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: most dangerous chemicals and pollutants for water and air

A: Pollutants are toxic materials that contaminate the environment. The pollutants are majorly…

Q: Why can’t marine organisms use the nitrogen gas dissolved in seawater?

A: Nitrogen is a critical constituent of chlorophyll, proteins, and nucleic acids. Nitrogen, like…

Q: If there is no “away” where organisms can get rid oftheir wastes due to the law of conservation of…

A: The law of conservation of matter states that matter cannot be created or destroyed, only changed in…

Q: Temperature (°C) 1 10 15 20 25 30 Concentration of Oxygen in Water Oxygen Concentration in…

A: The warmer water contains low amount of dissolved oxygen than the cold water. This is because the…

Q: In many less-developed countries, much of the municipal solid waste ends up being incinerated for…

A: Municipal Solid Waste, also known as trash or rubbish, is made up of goods that we all use and then…

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: The use of salt and sugar in preserving various types of foods is an application of which of the…

A: Food can be preserved for a long duration for consumption at later stages. Techniques used in food…

Q: If high temperatures are most effective at killing microbes, what statement correctly explains why…

A: Pasteurization process involves initially heating and then rapidly cooling liquids and food…

Q: Contamination in groundwater has no risk of getting into the surrounding environment because…

A: Ground water is defined as the fresh water which seeps via rocks and soil to the underground. This…

Q: In your environmental science lab, you test water samples from local bodies of water and find high…

A: There are various organisms found in the water bodies The various strains and microbes like…

Q: Continuous sampling and analysis of samples is carried out with the aim of… a. Meet the needs of…

A:

Q: Ocean acidification causing fish and other biota in the sea die or contaminated by carbon dioxide,…

A: Ocean acidification is a worldwide danger to the world's oceans, estuaries, and streams. It is…

Q: In the sediments at the bottoms of ponds and lakes, there is often absolutely no O2 at depths of 0.5…

A: In silt of sand or mud at the lower part of an ocean or lake, the spaces between the mineral…

Q: According to the Berner Classification for aqueous environments, which of the following definitions…

A: Geochemical exploration is to analyse the amount of metals and ore which are present in rock or…

Q: The aquatic ecosystem criterion maximum concentration (CMC) [acute surface-water toxicity limit] for…

A: Ecosystem : It is functional unit comprising of all organisms in a particular place interacting…

Q: Are there microbial interactions happening in the air? If yes, provide at least 1 example.

A: Microbes are organisms that are too small to detect without a microscope, such as bacteria, archaea,…

Q: cern" Is most abundant in Ohio? B.1.525 P.2 O P.2 B.1.351 P.1 B.1.1.7

A: These are variants of interest (B.1.526, B.1.525 and P.2), variants of concern (B.1.1.7, P.1,…

Q: Concentration of Oxygen in Water Temperature (°C) Oxygen Concentration in Freshwater (ppm) Oxygen…

A: Introduction:              Fresh water contains more dissolved oxygen than the seawater and it is…

Q: Case:  A porous but low permeability, old reservoir was evaluated by a group of petroleum engineers…

A: Well stimulation is a method which is performed on the oil or gas well for increase in the…

Physical and Chemical features

The physical property of a compound could be determined without modifying the originality of the compound. Examples of physical properties are density, hardness, color, boiling, and melting point. The chemical property expresses the ability of a compound to undergo a particular chemical change.