10. Modern farming methods have led to the total _______ of many species of wild flowers.
A. extinction B. alleviation C. harmony D. ecology
14. The 2007 exercise, involving 26,000 troops, had to _________ the depletion of marine life, green protesters claimed.
A. contributed to B. lost control of
C. have responsibility for D. pose a threat to
17. ____________ fishing methods such as dynamite fishing have decreased the fish population and seriously slowed down the regeneration cycle.
A. Endangered B. Ecological C. Unsustainable D. Uninhabitable