True, but there are some energy sources cheap
Answer:
I think it is Physical change
Answer: specialized service
Explanation:
An economy experiencing high interest rates will have to reduce investment generally, BECAUSE higher rates increase the BORROWING and demands that ONLY investments with prospect of HIGHER RETURNS (i.e PROFITABLE) should be considered.
Thus, all options are profitable EXCEPT specialized services, as they would be considered a luxury (too costly)
DNA is a COMBINATION of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base.
Answer: Freshwater aquaculture produces species such as catfish and trout. Freshwater aquaculture primarily takes place in ponds or other manmade systems.
Explanation: