which phenomenon do bats or dolphine use to find prey,predators or obstacle?
Answers
Explanation:
Erase parts of an image
Image and color basics
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Erase with the Eraser tool
Stroke smoothing
Change similar pixels with the Magic Eraser tool
Change pixels to transparent with the Background Eraser tool
Auto Erase with the Pencil tool
Applies to: Adobe Photoshop
Last Published: 23 June 2020
Erase with the Eraser tool
The Eraser tool changes pixels to either the background color or to transparent. If you’re working on a background or in a layer with transparency locked, the pixels change to the background color; otherwise, the pixels are erased to transparency.
You can also use the eraser to return the affected area to a state selected in the History panel.
Select the Eraser tool .
Set the background color you want to apply if you are erasing in the background or a layer with locked transparency.
In the options bar, choose a Mode setting. Brush and Pencil set the eraser to act like those tools. Block is a hard-edged, fixed-sized square with no options for changing the opacity or flow.
For Brush and Pencil modes, choose a brush preset, and set Opacity and Flow in the options bar.
An opacity of 100% erases pixels completely. A lower opacity erases pixels partially. See Paint tool options.
Answer:
Echolocation, also called biosonar, is the biological sonar used by several kinds of animals. Echolocating animals emit calls out to the environment and listen to the echoes of those calls that return from various objects near them. They use these echoes to locate and identify the objects.
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