the suns ray's can focus into one spot due to diffraction and could burn whatever is underneath the roof
Yes, thin plastic wrap is a transparent object because it allows light to pass through, making objects behind it visible. Transparent objects are those that transmit light without scattering it, allowing us to see through them clearly.
It can be: They saw us. Or it could be an indirect object: They gave us the book. It depends on the sentence.
on the roof
"Us" is an object form, and cannot be the subject of the verb "are." You Atlantans are fine, or We Atlantans are fine
The principle involved is the refraction of light. Light waves change speed and direction when passing from one medium to another of different optical density, causing the light to bend at the boundary. This bending of light is what allows us to see the transparent object in the clear liquid.
In this sentence, "Chris" is the indirect object. The subject (the person who did the action) is James. The verb tells us what James did (he gave), the direct object tells us what he gave (twenty dollars), and the indirect object tells us to whom he gave it. A sentence cannot have an indirect object unless it has a direct object.
Speed is a scalar quantity and has only magnitude and not direction. Hence, speed cannot tell us what direction an object is moving. However, velocity which is the vector equivalent of speed, can tell us the direction.
We cannot see the wind because air is homogenous and transparent. Wind does not reflect or block the light arriving at the eyes of a human being. We can only feel the presence of wind by the movement of thins around us like the trees, clouds and our bodily hairs.
"Us" refers to a group of people that you are with at that time, but "ours" refers to an object or posession relating to a group of people. E.g. "the train left the station without us" and "the wind blew the roof off our house"
The Grande Canyon
It might be, but you can't tell without seeing how it is used in the sentence. Us is an object, but it can be either an indirect object or a direct object, depending on context. For example, in "Tell us a story", us is an indirect object. But in "They robbed us", us is a direct object.
A book isn't translucent, it's opaque.A transparent object allows most of the light to pass through it allowing us to see through clearly through it.A translucent object allows some of the light to pass through it allowing us to see through it to a limited extent.An opaque object allows no light to pass through it and does not allow us to see through it at all.