Explain some of the processes that may be involved in a scientific investigation such as experimentation analysis

You should also repeat your experiments several times to make sure that the first results weren't just an accident.

as resources become scarce because of population growth, the growth decreases after few years due to lack of resources and food.

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.