<span>There are two
types of modern wind turbines. In a Verical-axis wind turbines (VAWTs), the
shaft is mounted on a vertical axis perpendicular to the ground. They are
aligned with the wind so there’s no adjustment necessary when the wind
direction changes. It can’t start moving on itself that is why it needs a boost
from its electrical system to get started. It uses wires for support so the
rotor elevation is lower. They are less efficient than HAWTs due to its lower
elevation. Lower elevation means slower wind due to ground interferences. The
other type is Horizontal-axis wind turbines (HAWTs), the shaft s mounted
horizontally parallel to the ground. It is constantly aligned with the wind
using a yaw-adjustment mechanism. This mechanism moves the entire rotor left or
right in small increments. It uses a tower to lift the turbine components to an
optimum elevation for wind speed and take up very little ground space. It is
much more efficient than VAWT. The motion that converts into electricity is the
rotor. The answer is letter D.</span>
Yes because movement is a characteristic of living things, and it is something that a living being must do to survive. For example, (at a cellular level) you need movement for growth, reproduction, and responses to stimuli.
Answer:
The lipid bilayer.
Explanation:
It is a thin polar membrane made of two layers of lipid molecules. These membranes are flat sheets that form a continuous barrier around all cells.
Answer is D cilia are absent in plant cells
is prokaryotic, one celled organisms, and can be both harmful and good to the body
