Agraphical user interface is a computer program that creates a display format that will allow a user to select commands, call up files, start programs, and do other routine tasks by using a mouse. according to the timeline, one of the first personal computers to use a graphical user interface, complete with a mouse, was released in which year?

1975 was the year of the of release.

It really depends on your memory. if you have a great one then probably. i have done it before personally and it’s stuck with me since i was 6. but if you have a bad one then it might stay for a while but i wouldn’t say permanently

answer: when the substance contain the two parts (polar and non-polar) like soap.

explanation:

soap is produced from the basic hydrolysis of ester "saponification", it is considered as a salt of hydrocarbons. the soap molecule contains the two parts: a polar group   (-coo-na+) and a non-polar group (r-hydrocarbon part). the polar group is called the head and the tail is the non-polar group. the polar group is hydrophilic in nature (water loving) and the non-polar group is hydrophobic in nature (water repelling).the polar/non-polar nature of a substance is useful that it can dissolve the non-polar substances by the polar part and also can dissolve the polar substances by the non-polar part. it commonly used in detergents and soaps.