Economic Importance — Prelims Questions

Which of the following phycocolloids is primarily extracted from red algae and is widely used as a solidifying agent in microbiological culture media?

Which of the following microalgae is renowned for its exceptionally high protein content (up to 70%) and is widely consumed as a dietary supplement?

Harmful algal blooms (HABs) can cause significant economic losses due to all of the following reasons EXCEPT:

Diatomaceous earth, an economically important product, is formed from the fossilized cell walls of which algal group?

Which of the following cyanobacteria is commonly used as a biofertilizer in paddy fields due to its nitrogen-fixing ability?

Which of the following is a beneficial application of algae in environmental management?