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Maurinko [17]
3 years ago
13

Which of these choices is a direct cost of using coal?

Biology
2 answers:
NISA [10]3 years ago
6 0

The correct answer is B.Cost of maintaining a power plant.

The cost of using a coal is $330 in America.

Some of the external problems which are being caused by burning coal for electricity include toxic coal waste, air pollution, damage to the ecosystem, and water pollution.

Coal is used in machines to convert heat energy and it is responsible for energy demands and electricity.

Brut [27]3 years ago
3 0

The answer is B. Cost of maintaining a power plant

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If you poke/squeeze/disturb a lepidopteran caterpillar and it produces a y-shaped, odiferous (smelly) osmeteria in response, it
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A lepidopteran caterpillar that responds to being prodded, squeezed, or otherwise disturbed by producing a y-shaped, odiferous (smelly) osmeteria is a swallowtail butterfly caterpillar.

<h3>Do Lepidoptera pose a threat?</h3>

In general, moths are calm animals. They just keep to themselves and don't attack or try to harm anyone. In contrast to ants, spiders, and wasps, they do neither bite or sting. They do harm the economy, and having them around the house is certainly annoying.

<h3>Do every caterpillar develop into a butterfly?</h3>

There are numerous caterpillars that change into moths rather than butterflies. There aren't any other exceptions to this rule, though. Every caterpillar will eventually change into either a butterfly or a moth, or both!

<h3>Lepidoptera are they pests?</h3>

Due of their impact as agricultural pests, more species of the taxonomic group Lepidoptera are regarded to be economically significant.

learn more about  caterpillar here

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4 0
1 year ago
The antibiotic rifampicin blocks transcription in many bacteria. In the presence of the antibiotic, adding sigma factor has no s
mariarad [96]

Answer:

transcription initiation

Explanation:

Transcription is a process by which genetic information from DNA is used to synthesize an RNA molecule, usually, a messenger RNA (mRNA), which is subsequently utilized to synthesize a protein by a process called translation. Transcription in prokaryotes has three steps:

1-Initiation: the RNA polymerase is a multisubunit enzyme (holoenzyme) composed of two α, one β, one β’ and one ω and σ subunits (α2ββ’ωσ). This holoenzyme binds to the promoter region of the template DNA strand.

2-Elongation. The sigma σ factor of the holoenzyme is released and the complex and the core enzyme (α2 ββω) moves along the template strand, thereby producing an mRNA sequence

3-Termination. This step can be Rho-dependent, where a protein named "Rho" recognizes the termination site and stop transcription, and Rho-independent (transcription continues until the termination sequence is reached).

In consequence, Rifamycin is likely to block the initiation of transcription because the core RNA enzyme needs to bind the sigma factor (σ) for initiation of transcription in bacteria.

8 0
3 years ago
What happens to carbon dioxide molecules in the body cells?​
Olin [163]

Answer:

Carbon dioxide can be transported through the blood via three methods. It is dissolved directly in the blood, bound to plasma proteins or hemoglobin, or converted into bicarbonate. The majority of carbon dioxide is transported as part of the bicarbonate system. Carbon dioxide diffuses into red blood cells.

Explanation:

5 0
3 years ago
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Aleks [24]

Answer:

True

Explanation:

7 0
3 years ago
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What stage of river is the Mississippi River?
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Answer:

River Mississippi is at Flood stage

Explanation:

Although it was last reported on August 4,2019. That's it's above flood stage for most of 2019.

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