Please state the following :)
Answer:
Plants that have many periods of reprodution are called perrenials.
~batmans wife dun dun dun....
Answer:
80 dB
Explanation:
Sound intensity is inversely proportional to the square of the distance traveled by the sound.
Thus;
r1^2 divide by r2^2 = L2divideL1
where r= distance (m)
L= sound intensity (decibal dB)
8squared divide by 4 squared = L2 divide 20 dB
L2 = 4 × 20
L2= 80 dB
This means that the sound is increased from 20 dB to 80 dB.
Answer by YourHope:
The older, inner wood in a stem that can no longer conduct sap but serves only as support for the stem is called HEARTWOOD
:)
