Which best describes the diagram?

A) a consumer is obtaining carbon by breathing it from the atmosphere
B) A consumer is obtaining carbon by absorbing it from the soil
C) A consumer is obtaining carbon by eating carbon-based molecules stored in a producer
D) A consumer is obtaining carbon by eating carbon-based molecules stored in a decomposer

An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?