What are factors affecting upthrust?

Answer 1

upthrust=buoyant force=weight of the body immersed in d liquid

so gravity and mass is a cause of upthrust as weight of a body=mass* gravity

Answer 2

1- volume of the body submerged in the fluid

2-density of the fluid

Answer 3

when the density of a fluid increases the upthrust or buoyant force also increases and viceversa

Answer 4

density + weight