Explanation:

Only statements 1st is correct.
Geoglyphs

• Geoglyphs are a form of prehistoric rock art, created on the surface of laterite plateaus.

• They are made by removing a part of the rock surface through an incision, picking, carving or abrading.

• They can be in the form of rock paintings, etchings, cup marks and ring marks.

• The UNESCO listing mentions Konkan geoglyphs.

• However, elsewhere, the term petroglyph (literally, “rock symbol/character”) is also used.

• As per the UNESCO listing, petroglyphs and geoglyphs share similarities as both require the skills of removing parts or engraving a symbol on the rock surface.

• A set of sinuous lines found in the Thar Desert of India is the largest geoglyph ever discovered.

Konkan Region

• Clusters of geoglyphs are spread across the Konkan coastline in Maharashtra and Goa, spanning around 900 km.

• Porous laterite rock, which lends itself to such carving, is found on a large scale across the entire region.

Hence option 1st is correct.