Organisms at higher trophic levels tend to be fewer in number than those at lower trophic levels. tf

The us government wants to allocate billions of dollars in the next 10 years to assure our future energy security. the funds will be spread among a variety of possible energy resources. where do you think the government should put the greatest support: solar energy, wind energy, clean coal, oil exploration, gas exploration, or a combination of sources? are there other efforts that should be explored? support your position with cited information for both questions.

The sun generates both mechanical and electromagnetic waves. which statement about those wave is true?

Idon’t quite understand this problem