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borishaifa [10]
3 years ago
5

Which of the following statements is TRUE?

Biology
2 answers:
prisoha [69]3 years ago
8 0
It letter D. light-electromechanical sound-
katrin2010 [14]3 years ago
3 0

A light wave of any kind will always be transverse and electromagnetic. A sound wave of any kind will always be longitudinal and mechanical. Therefore, the answer is <u><em>D: Light waves are electromagnetic waves and sound waves are mechanical waves.</em></u>

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What kind of bond holds together atoms within a molecule?
Semmy [17]
Covalent Bonds hold together atoms within a molecule
8 0
3 years ago
Read 2 more answers
The runner below has a mass of 55 kg and is moving at 3.87 m/s. what is his kinetic energy in joules
sweet-ann [11.9K]

Answer:

<h2>411.86 J</h2>

Explanation:

The kinetic energy of an object can be found by using the formula

k =  \frac{1}{2} m {v}^{2}  \\

m is the mass

v is the velocity

From the question we have

k =  \frac{1}{2}  \times 55  \times  {3.87}^{2}  \\  = 27.5 \times 14.9769 \\  = 411.86475

We have the final answer as

<h3>411.86 J</h3>

Hope this helps you

4 0
2 years ago
Rivers and streams are biodiverse ecosystems that are sensitive to change. please select the best answer from the choices provid
mylen [45]

It is true that rivers and streams are biodiverse ecosystems that are sensitive to change. Details about rivers and streams can be found below.

<h3>What is river and stream?</h3>

A river is a large and often winding stream which drains a land mass, carrying water down from higher areas to a lower point, oftentimes ending in another body of water, such as an ocean or in an inland sea.

On the other hand, a stream is a small river or a body of moving water confined by banks.

Rivers and streams are both freshwater ecosystems, hence, tend to respond to changes in their environment caused by anthropogenic activities.

Therefore, it is true that rivers and streams are biodiverse ecosystems that are sensitive to change.

Learn more about rivers and streams at: brainly.com/question/10904801

#SPJ4

6 0
2 years ago
What are the colors of the siberian wood frog?
Nana76 [90]
Brown tan or rusted colored
7 0
3 years ago
What are the Independent (IV) and the Dependent Variable (DV) in this hypothesis?
Alexeev081 [22]

Answer:

the dependent is how fast the coronavirus spreads. independent is whether the person works in a public space or not

4 0
2 years ago
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