Ecology Quick Questions

Please answer the following questions.
Please no plagiarism.
Microbial decomposition of organic matter results in NH4 production through a process called ________
Nearly all of the phosphorus in terrestrial ecosystems comes from the ________ of calcium phosphate minerals
___________ develop as a result of incomplete decomposition of organic matter in swamps and marshes
.The process of ____________ produces a form of nitrogen that is easily lost from soil through leaching.
____________ is when too much nitrogen enters an ecosystem and causes forest decline.
Explain the theory of island biogeography. What factors determine the rate of immigration (new species establishment) and extinction.Your response should be at least 200 words in length.