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lubasha [3.4K]
3 years ago
9

When the single source of pollution can be identified, it is called ______.

Biology
1 answer:
Reika [66]3 years ago
8 0

Answer: <u>Option D point source pollution </u>

Explanation: The pollutants which can be tracked, from the source of origin are termed as point source pollution. This can be water source, air or even light or noise pollution. The pollutants are easily detected being released from the source of pollution. Whereas the non-point source of pollution are those which are indirect sources and they carry off the pollutants which lie on the way, like runoff water carrying the pesticides from the agricultural land. Runoff and waste are examples of non-point sources of pollution. Thus, option A and C are incorrect answers.

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What is the impact of developing and using rock, mineral, and energy resources on earth's living and non living systems
77julia77 [94]

Answer:  The use of rock, mining and energy production contaminates the environment by affecting the abiotic land mass. And therefore, by contaminating the habitat, the living beings that live there are harmed.

Explanation:

<u>Mineral and rock extraction, transport and processing comprise actions that produce environmental impacts because it produces a certain disturbance to the surface and underlying strata, as well as to aquifers</u>. These impacts can be short-lived, lasting as long as the mine is operational, or they can persist after mine development has been completed.

Major impacts include:

  • Contamination of soil, vegetation, drainages, rivers and groundwater aquifers contamination from leaking tailing piles and slurry ponds. If not properly treated, effluent from surface or subway mine water disposal can be highly acidic, and will contaminate surface waters and shallow groundwater with heavy metals, nitrates or oil from equipment, reducing local water supplies. During surface mining, movement and stockpiling of overburden, constructions or covering of soils alter rivers, drainages and coastal areas.
  • Surface disturbance caused by access roads, pits, and site preparation.
  • Noise and emissions from the operation of equipment.
  • Air pollution, atmospheric dust from traffic, excavation, drilling and site clearing. Atmospheric particulates come from blasting, excavation and earth moving, transportation or any operations that occur on the surface of subway mines.
  • Removal of rock strata can disrupt the continuity of the local aquifer, and cause interconnections and contamination between groundwater.

<u>Both surface and subway mining include a drainage of the mine area and discharge of mine water, the removal and storage/disposal of large volumes of waste and the transfer and processing of minerals or construction materials.</u> This requires the use of diesel or electric mining and haulage equipment. Transportation of ore within the mine area and to processing facilities may use trucks, conveyors, rail, polyduct or conveyor belt which are vehicles that emit large amounts of carbon dioxide.

Processing plants may be located in mountainous regions and so may have difficulty disposing of production wastes and other pollutants. <u>They may then end up disposing of them in rivers or coastal waters.</u>

The land at the surface of the mines will be unstable, there will be fracturing and subsidence, it will modificate soils, vegetation, rivers, wildlife habitat, wetlands, causing a temporary or permanent loss of land productivity, and <u>contamination of soils due to mineral materials and toxic substances</u>.

<u>Also, the production and use of energy is the main cause, together with transportation, of greenhouse gas emissions, the gases responsible for climate change</u>. Consequences of climate change are increased temperatures, rising sea levels and reduced rainfall.

The current model of generation, transport and consumption, <u>absolutely dependent on fossil fuels, is unsustainable</u>. The chemical products emitted, mainly from coal and oil-derived thermal power plants, are transported by the wind and deposited by rainfall thousands of kilometers away from their origin, causing "acid rain", which is <u>the cause of the deterioration and destruction of forests, lakes and other ecosystems</u>. Another example are the N<u>uclear power plants which produce high-level radioactive wast</u>e (long-lived, highly radioactive), which poses a constant threat to the environment due to the current inability to manage it.

Thus, the use of rock, mining and energy production contaminates the environment by affecting the abiotic land mass. And therefore, by contaminating the habitat, the living beings that live there are harmed.

6 0
3 years ago
Parents bring a toddler to the emergency department after she tripped and fell on the sidewalk. You note a submental laceration.
bogdanovich [222]

The correct answer is Oral region.


Submental region is the head region located on the area under the chin. This means that laceration of this region will most likely affect the oral region that is beneath submental region. Oral region includes facial area comprising lips and mouth.



6 0
3 years ago
Read 2 more answers
What two descriptions are examples of mechanical descriptions?
timofeeve [1]
The answer to your question should be a and c hope this helps
6 0
3 years ago
Read 2 more answers
The operon model of the regulation of gene expression in bacteria was proposed by _____.
AlladinOne [14]

Answer: D. Jacob and Monod

Explanation:

An operon is a region of DNA that consists of a single gene regulated by more than one promoter. An operon is a region of RNA that consists of the coding regions of more than one gene. RNA polymerase is the enzyme that binds to promoters and transcribes the coding regions of genes into RNA.

Jacques Monod was the first to demonstrate the preference for certain substrates over others through his studies of E. coli’s growth when cultured in the presence of two different substrates simultaneously.

6 0
3 years ago
Which statement is FALSE?1. Flexible domain of T7 RNAP is part of a single protein and it binds to a major grove recognizing T7
uranmaximum [27]
<h2>Answer is option "2"</h2>

Explanation:

  • The high movement of T7 RNA polymerase has made the T7 RNA polymerase-based articulation framework exceptionally amazing for significant level articulation of recombinant protein. In any case, the overactivity of T7 RNA polymerase would likewise realize negative consequences for plasmid security and protein creation, particularly while communicating a lethal protein. In the event that the last job is predominant, it is important to embrace a few measures to weaken the action or the measure of T7 RNA polymerase in the cells
  • This represents an issue when an engineered hereditary framework is presented. At the point when it depends on the interpretation and interpretation hardware of the host, it turns out to be verifiably implanted in their guideline, causing it delicate to changes that to happen during cell development and capacity
  • Hence, the right answer is option 2 "T7 RNAP activity is strengthly regulated"

6 0
3 years ago
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