How were metal engravings made?
a. using a brayer
b. using a burnishing tool
c. using the intaglio technique
d. none of the above

By using the intaglio technique

Explanation:

Engraving on metals is an example of intaglio printing

Intaglio printing is a technique of printing. In this process ink is placed below the surface of the object. Placing of an ink in done by first carving the surface manually or mechanically with help of sharp tool having pointed end and then ink is applied in the grooves with the removal of excess ink from the surface.

where as brayer is a roller used to print the surface of an object and burnishing tool are used for providing super fine finishing to the surface of the objects.

Hence, the correct answer is option(c).

By using the intaglio technique

Explanation:

Engraving on metals is an example of intaglio printing

Intaglio printing is a technique of printing. In this process ink is placed below the surface of the object. Placing of an ink in done by first carving the surface manually or mechanically with help of sharp tool having pointed end and then ink is applied in the grooves with the removal of excess ink from the surface.

where as brayer is a roller used to print the surface of an object and burnishing tool are used for providing super fine finishing to the surface of the objects.

Hence, the correct answer is option(c).

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of carbon is as shown here in the image.

answer: i have one answer

acids are substances that ionize (break off) in an aqueous solution to produce hydrogen (h+) ions

explanation:

hope this and sorry i could only come up with one answer!