Which of the following city of India was a coastal settlement where ships unloaded goods from distant lands between 2200 and 1900 years ago?
Karaikal
Veerampattinam
Yanam
Arikamedu
D. Arikamedu
Which of the following is soda lime?
Ca(OH)2 + CaO
KOH + CaO
CaCl2 + CaO
NaOH + CaO
D. NaOH + CaO