Well.. it is just the next layer in after the cell wall. I have included a diagram.
Answer:
What would happen to the speed of a sound wave if it moved from ocean water to air?
It would slow down.
What would happen to the speed of a sound wave if it moved from a cooler room to a warmer one?
It would speed up
Explanation:
Just did it on edg
C. The electrostatic force is only repulsive and acts over shorter distance.
Answer:
False
Explanation:
The internet uses various mediums (fibre optic being only one of the newer ones) to transfer information.
<h2>The forces acting on the body</h2>
Explanation:
When an apple falls from tree , The forces acting are
( i ) Gravitation force acts downwards due to pull of the earth .
( ii ) The force of friction due to air acts upwards
When it rolls down the hill
( i ) The gravitational force due to earth acting downwards
( ii ) The force if friction due to surfaces in contact , acting upwards along the slope of the hill
When we slip on the floor
( i ) The horizontal forward force due to horizontal component of force of reaction by the floor .
( ii ) The frictional force acting in a backward direction , due to surfaces in contact .