Answer:
The answer is true because nothing else is not a solid liquid or gas
Answer:
in ps1, reaction centre is p700
in ps2, reaction centre is p680
Answer:
in summer we wear light coloures and mostly cotton clothes because we swear a lot and cotton is good absorber of water and light cloth so that it does not absorb more heat .
In winter we wear dark coloured and woolen othes to keep us warm the dark coloured clothes helps to absorb heat and keep us warm
