(b) Explain any THREE causes of environmental degradation (c) A stone of mass 10kg is thrown to a height of 100m.
i. What is the kinetic energy (K. E) at the maximum height?
ii. What is the potential energy (P. E) at the maximum height?
111.
What is the K. E and P. E just as the stone strikes the ground?
iv. Calculate the K. E and hence the velocity after falling 50m (take g=10ms).

Your answer is 1.5 hope i  

Inelastic is the answer your looking for.

Lysosomes are considered  a digestive enzyme

Sounds propagates through some kind of medium. usually it's air, but it goes just as well through solid objects like walls, windows etc. a soundwave will compress the (air)molecules in front of it, and if this increased density wave hits your ears, you register it as sound. solid objects like walls are a lot denser than air, this means that they will damp a wave, but also carry it easier.