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puteri [66]
2 years ago
9

Sam drives an excavator at an open surface strip coal mine. Which type of coal is he most likely to collect closest to the surfa

ce?
A. anthracite
B. subbituminous
C. Ilgnite
D. bituminous
E. pitchblende
Biology
1 answer:
Ivanshal [37]2 years ago
4 0

Explanation:

The right option should be c (lignite )

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State three reasons for preventing food spoilage​
bogdanovich [222]

Answer:

1) Refrigerate or freeze

If you freeze or refrigerate the food, the bacteria or whatever organism growth will slow down in the food by a Greta amount due to the coldness. Refrigerate might be a temporary food soteage for like a week or 2/ month max. While freezing will just freeeze the bacteria and mold on the food which can be stored up to 3- 12+ months even. But then again it will be most likely flavorless by the end or have no nutrients value. You can stores mik in the freezer for a while but its not recommended to taste, same for other thing syou usually see in the fridge, eggs/ vegetables/fruits/ milks/ yogurts/ etc.

2) No moisture, no water of any kind (drying in the sun or salted)

So every living thing we know of needs water. Including bacteria and mold. Without water, theres no place to thrive. No place to thrive means no bacteria and food is safe for a good amount of time. Dried foods can last a really long time, sure some types are really unpleasant but its edible. But you can’t techincally “dry” meat since it will be A whole nest for flies before it even reaches the halfway mark. You can slat it which will lessen he time but still really efficient. Salt absorbs water and breaks down any type of Stuff. Its like a mini acid.

3) Canned good and no air access (Pressurized/ controlled container)

This is done by putting all your favortie food in a metal container. With no air access, the bacteria or mold in the food already in can’t escape and new ones can’t get in. THe can then is boiled to a certain tempature where then the bacteria dies. Now the food can even be perishable stuff like meat (most common fishes), fruits and even a nice can of liquid soup. Nothin g can get in. Nothing can get out but nothing CAN get out becuase eveythign is dead. Canned food can last REALLY LONG, good for long term expeditions without a fire or food.

6 0
2 years ago
Read 2 more answers
Grass->Grasshopper->Mouse According to the 10% rule, how much of the grass's energy does the mouse receive in this example
lesya [120]

The grass energy that mouse receive is 10%.

The 10% rule states that only 10% of available energy is transferred as food is consumed from one trophic level to the next. It's important since it generates the pyramidal structure and establishes the number of organisms at each trophic level. Heat, inedible components, and the mere reality that not all prey are consumed by predators all result non energy loss.

The 10% rule states that only 10% of available energy is transferred as food is consumed from one trophic level to the next. It's important since it generates the pyramidal structure and establishes the number of organisms at each trophic level.

To learn more about 10% energy rule refer the link:

brainly.com/question/1405960

#SPJ9

8 0
10 months ago
Read 2 more answers
~MUCH NEEDED HELP ASAP PLS AND TY~
victus00 [196]
Maybe C but not for sure
7 0
2 years ago
Explain why hair is a derived character for clade mammalia but having four limbs is not. for which clade is four limbs a derived
Vsevolod [243]
For the answer to the question above, I think the answer is simply because <span>four legs characteristic is not special to mammals but the hair that is something more important and special characteristic of the mammals, that's why. I hope this helps
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5 0
3 years ago
The number of differences between cytochrome c of humans and cytochrome c of other organisms is as follows: Rhesus monkey - 1 di
liubo4ka [24]

Answer:

The species that will be most similar to humans will be

1. rhesus

2. pigeon

3. fruit fly

Explanation:

Evolution can be described as the process in which different organism evolve from common ancestors over a long period of time. Evolutionary studies show that some organisms have more shared characteristics as compared with other organisms. These organisms with common characteristics are believed to be closer to one another and evolved from the same ancestors.

In the above question, as there is only one difference between the cytochrome c of humans and rhesus, hence rhesus is the closest to humans. Pigeons has lesser number of differences than fruit fly, hence it is second on the list. Fruit fly has the maximum differences hence it is placed last.

3 0
2 years ago
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