1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
neonofarm [45]
2 years ago
7

There are three types of rocks on Earth. Each rock type forms in a different way. Igneous rocks were the first rocks on Earth. T

hey form from molten rock. Molten rock is rock that has turned to liquid because of extreme heat. Lava is the name for the molten rock that erupts from volcanoes. When molten rock is below the Earth’s surface, it’s called magma. When molten rock—either lava or magma—cools, it hardens into a solid. This forms igneous rocks. Some examples of igneous rocks are granite, obsidian and basalt. Much of Hawaii’s coast is covered in basalt. Waves break the basalt down over time, creating the black sand of some Hawaiian beaches.
Which of the following is true about lava and magma?
A. Lava and magma are both types of molten rock.
B. Magma uses waves to break down lava over time.
C. When magma cools and hardens it becomes lava.
D. Magma is called lava when it’s below the Earth’s surface.
Physics
2 answers:
MrMuchimi2 years ago
7 0

Answer:

Answer is 1, both are molten rocks.

zubka84 [21]2 years ago
5 0

Answer:

A

Explanation:

hot rocks bois, gottem

You might be interested in
What situation would give you a mechanical advantage? *
const2013 [10]
D. Using a fixed-pulley system
3 0
3 years ago
A swimmer, capable of swimming at a speed of 1.0 m/s in still water (i.e., the swimmer can swim with a speed of 1.0 m/s relative
Vesnalui [34]
If the current takes him downstream we must find the resultant vector of the velocities: V res= \sqrt{1^{2}+0.91^{2}  } = \sqrt{1.8281}= 1.3520747 Then if the river is 3000 m-wide the swimmer will have to pass:
 1.3520747 · 300 = 4056.14 m                t = 4056.14 m : 1 m/s
a ) It takes 4056.15 seconds ( 1 hour 7 minutes and 36 seconds ) to cross the river.  
b ) 0.91 · 3000 = 2730 m
He will be 2730 m downstream.
5 0
3 years ago
Six baseball throws are shown below. In each case the baseball is thrown at the same initial speed and from the same height h ab
Assoli18 [71]

Answer:

EXplained

Explanation:

from conservation of energy

change in potential energy = gain in kinetic energy

so as all he balls are throws from the same height thus the change in potential energy is the same for all the balls thus the gain in kinetic energy is the same for all the balls and as they have the same initial velocity thus the final velocity is the same for all the balls.

6 0
3 years ago
Read 2 more answers
On what two properties of a material does its density depend on?
ExtremeBDS [4]
Density of a material depends upon it's mass & volume.

You can calculate it by: Density = Mass / Volume

Hope this helps!
4 0
3 years ago
Which situation will change the direction of the bicycle?
Elodia [21]

Answer:

Dont know if this is right but i say C

Explanation:

6 0
3 years ago
Other questions:
  • How is an electromagnet different from a magnet?
    9·1 answer
  • An airplane is flying in a horizontal circle at a speed of 92.1 m/s. The 55.6 kg pilot does not want his radial acceleration to
    9·1 answer
  • 8. Humans need oxygen to break down food in order to provide energy for cells. The oxygen needed for this process is delivered b
    8·2 answers
  • A 2,000-kg test car, traveling 60 m/s hits a brick wall. Using motion pictures, the time involved is determined to be 0.050 s. W
    13·1 answer
  • In which situation is a person doing scientific work on an object?
    5·1 answer
  • Which particle would have the slowest rate of deposition? A.round particle B.very large particle C.particle with sharp ends D.pa
    14·2 answers
  • The force measuring instrument is called
    12·2 answers
  • Please please help i need to finish this test
    8·1 answer
  • Can someone please help me with this.
    11·1 answer
  • A skier stands at the top of a 50 meter slope. He then skis down the slope. What is his approximate speed at the bottom of the s
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!