C- mushroom
Mushrooms break down (decompose) dead cells of animals and plants.
Algae, lichen, and oak trees go through photosynthesis and are producers.
Answer:
A meter is a metric unit of length used worldwide by scientists to measure lengths and distances between objects.
Answer:
arrow (which creates the resultant vector)
Explanation:
When you use the graphing technique when adding vectors, you can use the head to tail method to draw the vectors. And from the starting point or the tail of the first vector you drew, you will draw an arrow touching heads with the head of the last vector drawn.
With that, you can use a ruler to measure the resultant vector's magnitude, and use a protractor to measure it's direction.
Below is an example:
Let:
V1 = Vector 1
V2 = Vector 2
R - resultant vector.