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Tju [1.3M]
2 years ago
9

Minerals are only used for gemstones and jewelry. True False

Chemistry
2 answers:
adelina 88 [10]2 years ago
6 0

Answer:

false

Explanation:

the answer is false because there is minerals in our water, ect.

Lina20 [59]2 years ago
5 0

Answer:

False because there are many minerals used for many different things

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Why is the base of an energy pyramid wider than the top
Zepler [3.9K]

It is due to a lack of providable energy to the next trophic level of the energy pyramid. Primary consumers only obtain around 10% of energy that producers have, and the energy depletes as you move further and further up the food chain, until you reach the tertiary consumers which have the least amount of energy at their disposal, meaning there are less of them than other organisms further down the energy pyramid.


Hope this helped!

5 0
3 years ago
Nikolas, the fire extinguisher, and the skateboard have a combined mass of 50 kg. What force would the fire extinguisher have to
murzikaleks [220]

Answer:

Force used by fire extinguisher = 60 N

Explanation:

Given:

Mass of skateboard with fire extinguisher = 50 kg

Acceleration of fire extinguisher = 1.2 m/s²

Find:

Force used by fire extinguisher = ?

Computation:

⇒ Force = Mass × Acceleration

⇒ Force used by fire extinguisher = Mass of skateboard with fire extinguisher × Acceleration of fire extinguisher

⇒ Force used by fire extinguisher = 50 kg × 1.2 m/s²

⇒ Force used by fire extinguisher = 60 N

3 0
3 years ago
Read 2 more answers
Which phrases accurately describe this rock. check all that apply
Nina [5.8K]
What are the phrases I don’t see any pictures??
7 0
2 years ago
PLEASE HELP I'M SO DOOMED
BartSMP [9]

Answer:

D

Explanation:

31 / 2.8 = 11.0714286 L per mole of helium

3.5 / 4 = 0.875 moles

2.8 + 0.875 = 3.675 moles

11.0714286 x 3.675 = 40.6875 L

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3 years ago
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Liono4ka [1.6K]
I think it might be A. i am not totally sure though
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2 years ago
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