The most accurate terms describing the trend over the past 50 years for human use of natural resources are

The trend over the past 50 years for human use of natural resources is that we are INCREASING our use of these, and it is UNSUSTAINABLE. So, because of the increase in technology that uses energy (e.g. computers and other electronics, heating and refrigeration, etc.) and because of the population growth, we are using MORE natural resources. Also, our reliance on already established sources of energy means that we are still using mostly sources of energy that are going to run out (as opposed to renewable sources like wind and solar power.)

Explanation:

to stay where they were until m sent for

answer: musical connotation

leonard b. meyer (1918-2007) was an american composer, author and philosopher. his work emotion and meaning in music is perhaps the first major treatise on music. it is a philosophical and psychological work, greatly influenced by koffka (one of the major proponents of gestalt psychology). his work deals with the problem of musical meaning and musical communication.