Question

What is the controlling idea of the section read algae—nori? A)nori is a valuable product for the japanese sea farming economy. B)seaweed harvesting is much different from any other type of farming. C)farmers follow many steps in harvesting nori. D)another type of seaweed is called nori.

Answer 1

The controlling idea of the section on algae—nori is likely that nori is a significant economic contributor to Japanese sea farming, based on its role in marine food chains and its cultivation in Japan.

Step-by-step explanation:

The controlling idea of the section on algae—specifically about nori, relates to how this type of seaweed, which is eaten by humans and known as 'nori' or 'laver', is an important base to marine food chains and contributes significantly to the Japanese economy through its cultivation. Nori, being a valuable product within Japanese sea farming, indicates that the controlling idea of the section could likely be option (A), as it emphasizes nori's economic value. Moreover, the sections on alien seaweeds, their management, and impact on ecosystems provide context for understanding the significance of seaweed like nori beyond just economic measures and underscore the complexity of seaweed as a topic.