Yeast is used in a brewery. Would the finished products from the brewery contain yeast? Explain.

Yeast is used for making wine. Explain.

A yeast…...is used to absorb the toxins released during the production of palm oil.

Compressed yeast is used in commercial bakery industry.

Which of the following is a product of fermation of carbohydrates by yeast ?

How the bread and other products produced using baker's yeast are nutritious ?

Maithili, Shaila and Ajay live in three different places in a city. There is a toy shop equidistant from their houses. Which geometrical construction should be used to represent this? Explain your answer.

Question based on paragraph A class of students was taken on an excursion by the school to the banks of a river. They were explained that energy can be transferred from phytoplanktons to humans. This pattem of energy in the ecosystem could be explained as a ‘pyramid of energy’. The pyramid of energy consists of phytoplanktons at the bottom, followed by three successive trophic levels consisting of zooplanktons, fishes and humans respectively. There is a gradual crease of energy and number of organisms from the base to the apex of the pyramid. The passage of energy is referred to as ‘one way’ transport. Based on the above passage, answer the question What would happen if the population of primary producers is drastically reduced?

A magnifying glass of focal length 10 cms is used to read letters of thickness 0.5 mm held 8 cm away from the lens. Calculate the image size. How big will the letters appear? Can you read the lettersif held 5 cms away from the lens? If yes what size would they appear. If No, why not.