One negative aspect of some renewable energies is that they: A) are too expensive to be used in most countries
B) can only be used in certain areas at certain times of the year.
C) create significant amounts of air pollution.
D) Are very limited in supply.

In iceland, the mid atlantic ridge runs through the center of the contry. what can you conclude about the apperence of iceland many thousands of years from now?

What are some characteristics of a free enterprise economy?

16. which of the following accurately describes a step within transcription? a. dna polymerase uses one strand of rna as a template to put together nucleotides. b. the dna strand is used as a template for which a complementary rna strand can be produced. c. the rna strand forms a template by which dna can be built. d. the rna strand is produced within the cytoplasm.