A deep water wave is a wave way under water. A shallow water wave is a normal wave that you see on top of the water.
Answer:
It should be B. Whether the ash or gas reaches the stratosphere
Explanation:
I don't know whether this is the best way of phrasing it , but the statement is true.
North Korea is a dictatorship, and the government is not allowing medical aid from abroad because they don't want to loose their control of the territory.
They also don't use the methods of farming found in other places and which proved to be more efficient.
The correct answer is A. An oak tree
Explanation:
The term "primary producer" is used to describe organisms that can produce their own energy without feeding on others, this includes plants and algae that produce food and energy through photosynthesis using light and other inorganic compounds. Additionally, the primary producers can be identified because in ecosystems they are always on the first level and they are eaten by others.
According to this, the one that is a primary producer is an oak tree because this is a type of plant and therefore can produce its food through photosynthesis different to others that need to feed on other organisms to obtain energy.
