Question

choose one of the following device.
1)a camera.

2)a washing machine.

3)a refrigerator.

4)a radio.

write two paragraphs.
●in your first paragraph name the device and describe that what It can do.

●in your second paragraph,say why do you think it is useful.​

Answer 1

Answer:

Radio:

Importance of the Radio In The Society • The radio is an essential information and Ccommunication tool, it has not only been important and beneficial to people in the beginning even up to now it still holds an essential position in communication. Its significance have continued expanding further even in the recent years when there have been great improvements and enhancements in the field of communication. The use of radio in communicating is not only reliable but cost-effective as well and these are just some of the reasons why it remained to be very popular today and why so many organizations have used them until today. Its importance has been recognized and organizations from every sect including education, politics, Christian and news were able to communicate effectively and accurately using this communication system. One of the most popular radio communication systems

Explanation:

Radio is one of the major means used in communication. Undeniably, Radio is accessible to people all day long. People could listen while inside the car, jeeps or on mobile phones. And because of that the radio could be used anywhere and everywhere. In the morning, if someone wants knowledge about what is happening around them, they could just turn on the radio and listen to the news. In the afternoon, if someone wants to relax and be entertained at the same time, they could just switch on the radio and listen to some music or radio drama. On the other hand, radio is also used as a tool for information dissemination and acquiring knowledge. Radio is one of the fastest means for officials to announce…

Answer 2

Answer:

A camera is a device that takes pictures (photographs). It uses film or electronics to make a picture of something. It is a tool of photography. A lens makes the image that the film or electronics "sees".

A camera that takes one picture at a time is sometimes called a still camera. A camera that can take pictures that seem to move is called a movie camera. If it can take videos it is called a video camera or a camcorder. The majority of cameras are on a phone. This is called a "Camera phone".

All cameras are basically a box that light can not get into until a photo is taken. There is a hole on one side of the camera where the light can get in through the lens, and this is called the aperture. On the other side is a special material that can record the image that comes through the aperture. This material is the film in a film camera or electronic sensor in a digital camera. Finally, there is also the shutter, which stops light from getting in until a photo is taken.

When a photo is taken, the shutter moves out of the way. This lets light come in through the aperture and make a picture on the film or electronic sensor. In many cameras, the size of the aperture can be changed to let in more light or less light. The amount of time that the shutter lets light through can be changed as well. This also lets in more light or less light. Most of the time, electronics inside the camera control these, but in some cameras the person taking the picture can change them as well.