What is the starting time for the Universe expansion?
a. 20.1 billion years ago
b. 15.2 billion years ago
c. 13.8 billion years ago
d. 5.60 billion years ago
Answer: c. 13.8 billion years ago
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Which of the following has not been practiced in India in their attempt to reduce their population growth?
A) camps for voluntary sterilization B) a national family planning program C) free or subsidized distribution of birth control devices D) legalized abortions E) mass deportation of immigrants (both legal and ilegal)
What was the average rate of plate movement between the formation of the volcanic centers on Maui and Molokai? (in mm/yr)
Pollutants emitted directly from identifiable sources are termed primary pollutants
Indicate whether the statement is true or false
Which of the following best matches the description?Organisms that enter a population from elsewhere are involved in
A. exponential growth phase. B. age distribution. C. lag phase. D. r-strategist. E. dispersal. F. emigration. G. K-strategist. H. environmental resistance. I. density-dependent limiting factor. J. density-independent factor. K. immigration. L. population density. M. death phase. N. stable equilibrium phase. O. biotic potential. P. carrying capacity.