Answer:
protection,access to food,comfort,
The question is incomplete. So the complete question and answer are given below:
You are talking with a friend in a closed room that has no windows, no objects, and no furniture. The only thing in the room is an overhead incandescent light that is turned on. You are looking at your friend and begin thinking about whether you are seeing your friend as a result of reflection. Does reflection play a role in seeing your friend? Group of answer choices:
Yes, the visible light from the overhead light bulb is diffusely reflected from my friend and enters my eye.
Reflection is the change in direction of the wavefront at the interface between two different media such that the wavefront returns to the medium of origin. Common examples are the reflection of light, sound, and water waves. According to the law of reflection, in specular reflection (such as from a mirror), the angle at which the wave hits the surface is equal to the angle at which it is reflected.
In acoustics, reflections cause echoes and are used in sonar. In geology, it is important for the study of seismic waves. Reflections are observed in surface waves in water bodies. Reflections are seen in many electromagnetic waves besides visible light. Reflections from VHF and higher frequencies are important for radio transmission and radar.
Learn more about Reflection here: brainly.com/question/26494295
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Yes it's an important sign because when u travel to different countries for business purposes it shows your confidence, communication skills, and the way of representing your business skills hence we can say that eye contact plays a major role in convincing other people and it also demonstrates our honesty and openness to wide cultures.
Answer:
High density. It placer mining takes advantage of gold's high density, which causes it to sink more rapidly from moving water than the lighter siliceous materials with which it is found.
