Never-Ending Book Quiz
The Granite Landscape: A Natural History of America's Mountain Domes, from Acadia to Yosemite
What is a mast year?
Choose the correct answer:a year of prolific seed production for a species of tree a year when older plant species sacrifice themselves for the good of younger plant species a year when temperatures are inexplicably and abnormally high or low a year when forest fires clear out a large number of native plant species, allowing invasive species to take over
skip question » Ask a friend