What is the relationship between friction and thermal energy?

When temp increases , particles in the object speed up , which is an increase in thermal energy . 

The answer would be d because x,y = male and x,x = female so x,y is male so xxy is male with a female trait!

The virus is considered to be are living item since they have hereditary material dnas or rnas. they can imitate and change. they respond to boosts, for example, radiation, chemicals, and warmth. they have antigenic properties. they are proficient to duplicate with a same hereditary constituent.