Answer: It's an EXPERIMENT
Explanation: Experiment is done when we apply anything to a samples or conditions in other to study another sample or conditions.
Observation is done when, we study samples or conditions in it's natural way, without application of anything that may alter it's result.
Because the researcher has applied fertilizer to one side and did not apply to the other side, that means he has performed an experiment. Since he wasn't observing the two sample in it's natural way without any external application.
<span>A knowing relinquishment of a legal right is called a waiver and, in the legal world, is usually completed by signing a legal document.</span>
Answer:
The good sportsman respects both his teammates and his opponents as equals.
Answer:
At the center of the stone, the face of Tonatiuh represents the current Aztec world, the Fifth Sun, whereas the surrounding symbols represent the calendric signs of the past four eras. On the stone, Tonatiuh's tongue is a sacrificial flint or obsidian knife protruding outwards.
Explanation:
sorry if im wrong
Answer: Pets who learn that the sound of an electric can opener signals the arrival of their food illustrate: C.) classical conditioning.
Explanation: These pets have been experiencing Pavlovian Conditioning, this is the conditioning response of associating the (neutral stimulus) sound of the can opener with receiving food (biological stimulus).