Questions

Primary succession is the orderly and predictable series of events through which a stable ecosystem forms in a previously uninhabited region. Primary succession occurs in regions characterized by the absence of soil and living organisms.

Unlike other gas cycles, the phosphorus cycle differs in having atmospheric reservoir. No other gases are involved in it.

Capital budgeting is the process by which a company or an industry determines whether projects such as investing in R&D, opening a new branch, replacing a machine are worth pursuing. A project is worth pursuing if it increases the value of the company. Capital budgeting also known as investment appraisal. 

It is primarily concerned with evaluating investment alternatives.

Java is one of the small number of languages that support at the language level for the creation and management of threads. However, because threads are managed by the java virtual machine (JVM), not by a user-level library or kernel, it is difficult to classify Java threads as either user- or kernel-level.