When a beta particle is emitted, the mass number of the isotope remains unchanged
Indicate whether the statement is true or false
TRUE
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Researchers were studying a population of birds on Daphne Major, one of the Galápagos Islands. A drought caused many plants on the island to die. There were few seeds left for the birds to eat. Small seeds, which were easy to eat, disappeared quickly. Larger seeds remained available. Birds with thicker beaks were better able to crack and eat these larger seeds. Which of the following statements about the population on Daphne Major is TRUE?
A. Birds with thick beaks are more likely to survive during the drought. B. Birds with thin beaks are more likely to survive during the drought. C. Birds with thin beaks and birds with thick beaks are equally likely to survive during the drought. D. It is impossible to tell from the information provided.
Most of the energy and mineral resources we use are renewable
Indicate whether the statement is true or false
The greatest threat to most species is
A. the destruction of habitats. B. water pollution. C. parasites. D. the buildup of toxic substances in food chains. E. flooding.
Which of the following best matches the description?Naturally occurring radioactive isotope used in nuclear reactors.
A. decommissioning B. beta radiation C. transuranic waste D. light-water reactor E. heavy-water reactor F. U-235 G. radioactive half-life H. alpha radiation I. thermal pollution J. nuclear fusion K. nuclear fission L. gamma radiation M. radiation N. moderator O. rem P. nuclear breeder reactor