'Though called tar, the black sticky pitch is really this, used as a glue by early Indians & today, to pave roads'
asphalt
COMMON BONDS: Though called tar, the black sticky pitch is really this, used as a glue by early Indians & today, to pave roads
Though called tar, the black sticky pitch is really this, used as a glue by early Indians & today, to pave roads
Though called tar, the black sticky pitch is really this, used as a glue by early Indians & today, to pave roads
COMMON BONDS
asphalt
COMMON BONDS