D. diamond, is the best option..
Answer:
It's B) serving as a food source
Explanation:
In a food pyramid 10% of the energy something has obtained is transferred to the next animal / organism that eats it . So if a plant were to provide energy to an animal in their life process, they obtain that energy from the sun but give the energy by being eaten by an animal in their life process
Answer: depth = 3.75 m
Explanation:
Taken the speed of the sound in sea to be V = 1500 m/s
The time between an echo sounder sending and receiving a pulse is 0.005 s. That is,
Total time T = 0.005
Formula for echo is:
V = 2X/T
Where X = distance covered
Substitute V and T into the formula
1500 = 2X/0.005
Cross multiply
7.5 = 2X
Make X the subject of formula
X = 7.5/2
X = 3.75 m
Therefore, the depth of the sea is 3.75 m
The Law of Force and Acceleration