Question

2. This Tool in Photoshop CC is used to enhance or change the appearance of
an image​

Answer 1

Answer:

In the menu bar, select Image > Adjustments > Brightness/Contrast.

Adjust the Brightness slider to change the overall brightness of the image. Adjust the Contrast slider to increase or decrease image contrast.

Click OK. The adjustments will appear only on the selected layer.

Answer 2

Answer:

Brightness slider...

Hope it helps you...