The source of phosphate in the phosphorous cycle is the atmosphere.
Answer the following statement true (T) or false (F)
False
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An evolutionary trend in hoofed animals in which the premolars become more like molars,
giving the animals a continuous series of grinding teeth:a. photosynthesis d. sublimation b. accretion e. molarization c. mitosis
After four half-lives of decay, what is the ratio of radioactive parent isotope to stable daughter isotope?
a. 1:15 b. 1:1 c. 1:31 d. 1:3 e. 1:7
Variations in the shape of the earth's orbit:
A) have a cycle of about 100,000 years. B) are related to changes in sunspot activity on the surface of the Sun. C) will eventually lead to the earth having a perfectly circular orbit. D) have a cycle of about three million years.
If the wave height of 1500 waves is recorded, significant wave height will be the average of the highest ________ waves.
A. 750 B. 15 C. 500 D. 150 E. 300