<span>The main difference of renewable and non-renewable resources lies in the capacity of
the environment to replenish itself. Renewable resources are resources that can
be easily replenished by the environment over a short period of time, while
non-renewable resources take more time. <span>
Examples
of renewable resources are solar energy, harnessing the sun's power that shines
day to day. Wind energy that exists naturally is also a renewable source.
Geothermal energy, heat coming from the center of the Earth, and Biofuels,
fuels made from living organisms, are all renewable energy.
<span>Non-renewable
energy resources are the fuels we use in our cars, minerals from the soil,
coal, among others are supplies that also come from Earth. These are all materials that might take a long time (probably millions of years)
to be fully restored. </span>
</span></span>
No the amplitude of each waves are different on different cardiac cycles.
<u>Explanation:</u>
- The PQRST waves are used to represent the atrial and ventricular depolarization and repolarization. These waves are reflected in ECG.
- In this as the series, p occupies the first place then QRS complex and at last T wave. In the QRS wave complex, R wave is said to be the largest wave.
- The direction and amplitude of r wave depend on the electrical picture. The R wave represents the ventricles depolarization so it is the largest wave.
The answer is C) Ecological niches become available for organisms to evolve into by adaptive radiation
<span>Perhaps surprisingly, lakes and rivers constitute a tiny proportion of the world's total freshwater, so answer (b) is correct. Most of the freshwater on our planet is in fact locked up in ice and glaciers, some 68%. The majority of the rest, 30%, is actually underground, in springs and other groundwater feeders. That leaves just 2% that makes up all the rivers, lakes, ponds and other visible freshwater reservoirs that we see in our day-to-day lives.</span>
