An area where material from deep within earth’s mantle rises to the crust and melts to form magma is called a(n ________

What test may be used to determine if a stain is blood or not

AveGali [126]

Kastle-Meyer Color Test is used to determine if a stain is blood or not.

As of I believe

6 0

3 years ago

Light waves have some similarities with water and sound waves, but they are not exactly the same. Describe all the differences y

makkiz [27]

Answer:

<h2>All the waves are pertubations that propagate (transport) energy.</h2><h2></h2>

Nevertheless, they have some differences:

1. Light waves are electromagnetic waves, while sound and water waves are mechanical waves, this is the first and principal difference.

2. Electromagnetic waves can propagate in vacuum (they do not need a medium or material), but mechanical waves obligatory need a material to propagate

3. Light waves are always transversal waves, this means the oscillatory movement is in a direction that is perpendicular to the propagation; but mechanical waves may be both: longitudinal waves (the oscillation occurs in the same direction as the propagation) or transversal waves.

4. Electromagnetic waves propagates at a constant velocity (Light velocity) while the velocity of mechanical waves will depend on the type of wave and the density of the medium or material.

5. Mechanical waves are characterized by the regular variation of a single magnitude, while electromagnetic waves are characterized by the variation of two magnitudes: the electric field and the magnetic field

6. Water waves are 2-dimensional waves, while the light and the sound are tridimensional spherical waves

7. Light waves transports energy in the form of radiation, while mechanical waves transport energy with material

3 0

3 years ago

Please help me. I have to submit this today.

Naily [24]

B I think hope this helps

3 0

3 years ago

Would you take a course/class in Positive Psychology, Why or why not?

defon

Answer:

Positive psychology is important because discovering what leads people to live more meaningful lives can translate to better strategies for managing mental illness, correcting negative behaviors, and increasing our happiness and productivity.

Explanation:

3 0

2 years ago

How many stars our thier in the universe

Svet_ta [14]

<h2>About 1 billion trillion stars</h2>

Since the universe is so big, we don't know for sure what the exact number is, but assuming an average of 100 billion stars per galaxy (which is smaller than a universe), we could say that there are 1 billion trillion stars in the observable universe.

8 0

3 years ago

An area where material from deep within earth’s mantle rises to the crust and melts to form magma is called a(n _________