1 You can manually pollinate the plant, but the process is not covered in this article.  A chocolate tree can grow as high as an apple tree under the right conditions. Once it begins producing, it may produce for another 20 years, while some cacao trees have been known to live for 100 years.
1 An example of atmosphere is the creepy feeling one gets whenever they walk past the old, abandoned neighborhood house which is rumored to be haunted. 2  An example of atmosphere is a romantic restaurant which has candlelight, soft music, bountiful flowers, and stunning art work.
Open Systems. The ocean is an open system. The ocean is an example of an open system. The ocean is a component of the hydrosphere and the ocean surface represents the interface between the hydrosphere and the atmosphere that lies above. Solar radiation passes through the atmosphere and is absorbed by the ocean.