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.
About 19% was from nuclear energy, and about 17% was from renewable energy sources.
They’re all examples of minerals
<span>The answer is Ottawa, Canada.
Ottawa is the capital city of Canada and has a population of around 1 million people and is the fourth-largest city in Canada. The city has many of the functions and attractions that one would expect in a capital city - the country's parliament and many museums and educational establishments.</span>