El sol es probablemente la fuente más importante de energía renovable disponible hoy en día. Tradicionalmente, el sol ha proporcionado energía para prácticamente todas las criaturas vivientes en la tierra, a través del proceso de fotosíntesis, en el cual las plantas absorben la radiación solar y la convierten en energía almacenada para el crecimiento y el desarrollo.
1 cm on the map represents 10 km on the ground = 10 × 15 = 150 km.So,Then the normal length of the scale should be 15 cm.(150 km is a round number.)Then,15 cm × 60 km = 9000m².Therefore,60 km in map would be 9000m².
<span>The earth has four layers; the
crust, the mantle, the outer core and the inner core. The Earth’s magnetic
field is the combination from the convection it receives from the outer core
and the Coriolis Effect. The answer <u>is letter A.</u> The outer core is
composed mostly of liquid nickel and iron. It is expected to have that state of
metal because it has a higher temperature. The inner core cannot hold much of
the magnetic field because of its high temperature and high pressure that
exceeds the outer core. The temperature decreases however as the layer goes
outwards. </span>
