According to the Law of Conservation of Matter, the total amount of carbon on Earth. A. increase due to burning of fossil fuels.
B. changes according to the season of the year.
C. always stays the same. D. is decreased by photosynthesis

What is the energy of a photon of ultraviolet radiation with a frequency of 4.4 × 1015 hz? planck’s constant is 6.63 × 10–34

Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. a) reforestation would not benefit many species because most forest species live on the ground. b) reforestation would take the longest time to be effective because trees take several years to grow. c) biological augmentation would benefit only a few species because is is typically not very effective. d) biological augmentation would take less time to ve effective because it targets the majority of prey species.

At what time will the interfering waves have an amplitudeof zero?