The correct answer is D. It gives the same result when experiments are repeated.
Explanation:
Science refers to a system or discipline that aims at understanding phenomena that is testable mainly through multiple observations, hypotheses, and testing. Because of this, characteristics of science include that it is based on facts or ideas that have been proved, it is useful for answering testable questions and also the findings are replicable which means if tested multiple times same results would be obtained which proves phenomenons and events are facts and do not depend on opinions or personal views. Considering this, the one that is a characteristic of science is that "It gives the same result when experiments are repeated".
Answer: isotopes are two or more atoms of the same element having the same atomic number(proton number) but different mass number due to the difference in their Neutron number
Random errors will shift each measurement from its true value by a random amount and in a random direction. These will affect reliability (since they're random) but may not affect the overall accuracy of a result.
When heat flows from one object or substance to another it is in contact with, the objects or substances are said to be in thermal contact. The state where objects in thermal contact with each other reach the same temperature, no heat flows between them.