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lorasvet [3.4K]
3 years ago
8

A geologist concludes that a rock sample is an extrusive igneous rock. Based on this information, which statement about the rock

is accurate?
A. The rock formed from cooling lava.
B. The rock likely came from a pluton.
C. The rock cooled slowly over millions of years.
D. The rock formed within Earth's crust.
Biology
2 answers:
Finger [1]3 years ago
8 0

The correct answer is D

vazorg [7]3 years ago
7 0

Answer:

d

Explanation:

<h2>The answer is Letter D</h2>
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Sedaia [141]
Yes you can I am pretty sure and also add me as a friend lol I need friends and I’m bored lol
3 0
2 years ago
In general, why might cell-wall inhibiting antimicrobial drugs be less effective on gram-negative bacteria compared to gram-posi
asambeis [7]

Cell-wall inhibiting antimicrobial drugs be less effective on gram-negative bacteria compared to gram-positive bacteria because the outer membrane of the gram-negative bacteria inhibits penetration of the drug and the peptidoglycan found in gram-positive bacteria is structurally different from that in gram-negative bacteria.  

Answer: Option B & C

<u>Explanation:</u>

Antimicrobial drugs are induced into a body to act on that particular selective bacterium which causes disease. When antimicrobial drugs are injected they act efficiently on the gram positive bacteria inhibiting the proliferation of the cells by acting on the cell wall so that cell multiplication doesn’t happen.

On the other hand it is hard to act on the gram-negative bacteria as it has a cell membrane that inhibits drug penetration into it. Both cell walls contain peptidoglycan but in the gram-positive is more assembled and layered while in the gram-negative it is just a thin layer. As gram-positive is thick layered it provides place for another molecule to attach to it but the thin layer in gram-negative inhibits it.

4 0
3 years ago
How can flooding can be cause
GenaCL600 [577]

Answer:  

Severe flooding is caused by atmospheric conditions that lead to heavy rain or the rapid melting of snow and ice.

Explanation:

3 0
3 years ago
According to US Energy Information Administration data, urban U.S. households own an average of 1.8 vehicles each, compared with
Dmitrij [34]

Answer:

transportation

Explanation:

looking at nighttime satellite photos that show dark landscapes illuminated by glowing urban dots. On the surface, these seem like clear evidence of city dwellers' oversized energy footprints.

And when comparing big cities and small towns directly, a Philadelphia, Pennsylvania, obviously dwarfs the power consumption of a Philadelphia, Tennessee Urban and rural populations use energy differently, though, which complicates such broad comparisons.

Despite hosting regular traffic jams, cities win the head-to-head efficiency matchup in transportation thanks to their mass transit systems and denser layouts, which promote walking and bicycling. Small-town and suburban residents usually have to drive themselves to get around, which isn't cheap.

According to EIA data, urban U.S. households own an average of 1.8 vehicles each, compared with 2.2 for each rural household. Urban families also drive about 7,000 fewer miles annually than their rural counterparts, saving more than 400 gallons of gasoline and roughly $1,300-$1,400 at current gas prices.

( I hoped this helped! :D )

8 0
3 years ago
If a plant were to absorb a substance that readily reacts with carbon dioxide in the stroma, the dark reactions would be most li
Assoli18 [71]
The right answer is the dark reaction would stop happening.
The Calvin cycle (or dark reactions, independent of the sunlight) makes it possible to manufacture glucose, an energy molecule, from carbon dioxide. This is called carbon fixation.There are three reactions of this cycle take place in the stroma of chloroplasts: the first of which is the fixation of carbon dioxide. which is a limiting step in this cycle.If a substance other than the components of the dark reactions absorbs and uses carbon dioxide, the carbon cycle will not be able to occur for lack of one of these ingredients which is the CO2.
7 0
3 years ago
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