The mechanism for evolution is natural selection
a
Answer:
bone is the everything of movement
To answer the question that is: "which factors affect a river's load", we have to understand that all the things mentioned are important. All these options (river's slope, streambed shape and volume of flow) affect the amount of energy that the river has to spend and the way the river spend that energy, so, it is right to mark the alternative d) all of the above.
Cybersecurity- the state of being protected against the criminal or unauthorized use of electronic data, or the measures taken to achieve this.
