Photoshop Selection Tools

Explanation
The best tool to select a circle is the elliptical marquee. This tool allows you to create a perfect circle by dragging the cursor while holding down the mouse button. It is specifically designed for selecting circular or oval shapes, making it the most suitable option for selecting a circle. The rectangle marquee tool is used for selecting rectangular shapes, while the magnetic lasso tool is used for selecting irregular shapes by automatically detecting the edges of an object.

Explanation
The best tool to select a multicolored book would be the rectangle Marquee. This tool allows for precise and straight-edged selections, making it ideal for selecting objects with defined shapes such as a book. The ellipitical marquee tool is used for selecting circular or oval shapes, which may not be suitable for a book. The magnetic lasso tool is used for selecting objects with irregular shapes, which may not be the most efficient option for selecting a book with straight edges.

Explanation
To get a closer look at an image or a specific part of an image, the tool that should be selected is the "zoom" tool. This tool allows the user to enlarge the image or zoom in on a particular area, providing a more detailed view. The eraser tool is used for removing parts of an image, while the magnetic lasso tool is used for selecting specific areas of an image.

Explanation
To return to normal size after zooming in, you would double click on the "hand" tool. The hand tool is commonly used in graphic design software to navigate and move around the canvas. Double clicking on the hand tool allows you to reset the zoom level and return to the original size of the document or image.

Explanation
The magic wand tool is the best tool to use when selecting an image or part of an image where the colors are the same. This tool allows you to select pixels based on their color similarity, making it easier to quickly select areas with similar colors. The magic wand tool can be adjusted for tolerance, which determines the range of colors that will be selected. This tool is particularly useful when working with images that have areas of solid color or distinct color regions.

Explanation
The correct answer is "filter" because a Gaussian blur is a type of image filter that is used to reduce noise and blur the edges of an image. It works by convolving the image with a Gaussian function, which results in a smoother and more blended appearance. Therefore, "filter" is the most appropriate term to describe the Gaussian blur technique.

Explanation
To copy a selection in Photoshop, you hold down the Alt key. This key allows you to duplicate the selected area and create a copy of it. By holding down Alt and dragging the selection, you can easily make duplicates of the original selection in the desired location.

Explanation
This tool allows you to remove or exclude unwanted parts from your selection. It is commonly used in image editing to crop or trim the edges of an image, removing any unwanted or unnecessary elements.

Explanation
The tool described in the question is used to "suck up" or select a color from an image or canvas, which can then be used for painting or other purposes. This tool is commonly known as the eyedropper tool in graphic design and image editing software. It allows users to easily sample and select colors from an existing image or artwork, making it convenient for maintaining color consistency or matching colors in a design. The term "color picker" is also used interchangeably with the eyedropper tool in some software applications. The smudge tool, on the other hand, is used for blending or smudging colors together, which is unrelated to the described functionality.

Explanation
The quickest and easiest way to go back several commands is by using the "History" option. This option allows users to view a list of previously executed commands and navigate through them to go back to a specific point in the command history. By selecting the appropriate command from the history list, users can easily and quickly go back to previous commands without having to retype them.

Explanation
The foreground icon on the tools palette will show you the color that will be applied with any of the painting tools.