Extramarks.com
give examples for thermosetting plastics?
give examples for thermoplastics?
what are petro chemicals?
what are the carriers for communicable diseases?
what are communicable diseases?
why it is easier to swim in sea water than in river water?
which are the forms of water thst can be seen on earth?
why has water been crucial in shaping the face of the earth?
why is water necessery for life on earth?
WHAT IS WATER?
