What common tool does this shape remind you of ?

How many strands do you see?

There are 2 strands. The shape if of a double helix, but it reminds me of a twisted ladder.

Explanation:

Hope this helps!

i believe you meant to say air rather than hair so the answer is below ")

the dead sea, the lowest place on earth at 430 metres (1,410 ft) below sea level, has a correspondingly high typical atmospheric pressure of 1065 hpa.

explanation:

the fossil record extends back to a dog-like ancestor some 55 million years ago, which gave rise to the first horse-like species 55 to 42 million years ago in the genus eohippus.