6. D
7. D
8. B
let me know if you need clarification
1) yeasts example is Sacchromyces Cerevisiae which is a baker's or brewer's yeast
2) molds example is Rhizopus a type of mold that appears on old bread
3) mushrooms example is Amanita Phalloides also known as the "Death Cap " is a very poisonous mushroom and should not be ingested
Answer:
Speed of the alpha particle is
Explanation:
We have given charge on alpha particle 
Mass of the alpha particle 
Potential difference 
We have to find the speed of the alpha particle
From energy conservation we know that



A.
Destructive interference is when two waves cancel each other out or when the crest of one wave passes through the trough of another wave.