Which of the following statements is true?Thunder is caused by the heating and expansion of air.
Light travels faster than sound.
Thunderstorms are most common during the summer.
all of the above

Answers

Answer 1
Answer:

Answer:both of them are true

Explanation:please thank me and write me with 5 stars please and thank you

Answer 2
Answer:

Answer:

both are true

Explanation:

thunder: when air molecules are heated, they expand. Sound waves move faster in warm air than they do in cool air. and The speed of light as it travels through air is much faster than that of sound.


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Identify which of the following is a complete and balanced chemical equation

Answers

Answer:

because a complete equation must have all the elements present on the left hand side of the arrow on the right hand side of the arrow as well, and to be balanced there must be the same number of each type of atom, so both A and C are full equations, but A is not balanced because although there are two oxygen atoms on each side of the arrow, there is only one hydrogen atom on the left and two on the right, thus the right hand side is 'heavier' than the left and the equation is unbalanced.

Explanation:

How does a real image differ from a virtual image?

Answers

Real image is formed when the rays of light after reflection or refraction actually meet at some point whereas a virtual image is formed when the rays of light after reflection or refraction appear to meet at a point

Answer:

one contains datta that can take up hard drive or disc space weras a picture takes up space on walls or photo albums

Explanation:

Select the correct answer.Rita is about to buy a house. She looks at houses in a good neighborhood that’s well known for its excellent community policing.. What need is she trying to fulfill according to Maslow’s hierarchy of needs?
A.
self-actualization
B.
esteem
C.
safety
D.
physiological

Answers

the answer would be c because it is talking about she wants to be in a good neighborhood
I would say c, if she is looking in a good neighborhood with good policing, then she wants to be safe.

If the mass is doubled the kinetic energy will?

Answers

Besides the mass, kinetic energy also depends on speed.

If the speed remains constant, then kinetic energy is proportional
to mass. So if speed doesn't change while mass increases, then
kinetic energy increases, but I can't think of a situation where that
can happen.
it doubles, assuming the speed remains the same.

Which of the following best describes the behavior of silica rich magmaA. Highly viscous and associated with violent eruptions
B. Highly viscous and associated with quiet volcanic eruptions
C. Stays deep within earth because of low viscosity
D. Cannot flow but is limited to fixed areas of hotspot volcanism

Answers

Answer: Option (A)

Explanation: Silica rich magma are those in which the magma has more than 65 % of silica content. The higher the silica content, the higher is its viscosity i.e viscosity of a magma is directly proportional to the silica content of magma.

This highly viscous magma inside the volcanoes moves sluggishly and mostly gets concentrated in the vents and seals them. With time, when the pressure exerted by the magma is too high, it creates violent eruptions through the vents.

Thus, the correct answer is option (A).

Answer:

A. Highly viscous and associated with violent eruptions

Explanation:

Most silica rich magma have high viscosity and huge amount of trapped gases within them. As they continue to upwell and expand, the gases causes violent eruptions near Volcanoes. Most granitic/rhyolitic magma are silica rich.

Which substance is a combination of different atoms?

Answers

Answer:

Heterogeneous

Explanation:

A chemical substance is composed of one type of atom or molecule. A mixture is composed of different types of atoms or molecules that are not chemically bonded. A heterogeneous mixture is a mixture of two or more chemical substances where the various components can be visually distinguished.