Answer:
33.5
Explanation:
the mean height is the average. Simply add up the height of all the plants with fertilizer and divide by 5 (Being the amount of plants with fertilizer)
30.5+32.1+40.6+30.5+33.8 = 167.5
167.5/5 = 33.5
AH(average height)= 33.5
Answer:
C
Explanation:
Dead zones are are areas of low oxygen or hypoxia. They are usually caused by nutrient pollution that leads to algae blooms, but there are other factors that contribute
Hope this helps :)
Explanation:
By using sound absorbing substances we can reduce the echoes.
as we seen in the cinema hall...lol
B. The nervous system collects and responds to information about the external and internal environment.
