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rosijanka [135]
3 years ago
14

What kind of environment would have had to existed in the past for an area to have coal today?

Biology
1 answer:
zepelin [54]3 years ago
6 0

Answer:

B

Explanation:

Because coal is from plants.

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The MA of a lever is 4. If you have to lift the object up 20 cm,
puteri [66]

Answer:

jayfeather friend me

Explanation:

Answer: The mechanical advantage of a machine is 4. ... Mechanical advantage MA is the ratio of output (generated by the machine) force to input (applied to the machine) force. So MA = 4 means that for example if you apply 100 N then your machine will multiply that force and generate 400 N.

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3 years ago
For this testable question write a proper hypothesis and identify the variables.
liubo4ka [24]
Hypothesis - there will be a relationship between the amount of gas per kilometer and the speed the man is going. This is because , more speed requires more gas / power.
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6 0
2 years ago
Please help me?? I need help labeling the graph using the word bank
sladkih [1.3K]

Answer:

Explanation:

  1. Oceanic Plate
  2. Subduction Zone
  3. Convection Currents
  4. Asthenosphere
  5. Continental Plate

The Oceanic Plate is located near the ocean ridge. Which represents where magma creates new oceanic crust.

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Convection Currents are what drives the movement of rigid tectonic plates in Earth's molten mantle.

The Asthenosphere is the upper layer of the mantle. Which is below the lithosphere (Continental Plates).  

Continental Plates are the outer shell of the mantle.

Let me know if this helps!

7 0
3 years ago
Frost wedging occurs when water seeps into a crack in a rock, freezes, and causes the crack in the rock to widen. true or false?
nevsk [136]
It is true that frost wedging occurs when water seeps into a crack in a rock, freezes, and causes the crack in the rock to widen.
8 0
3 years ago
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8th Grade Science question I’m in a hurryyy
sammy [17]
1 science
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