Hello! Your answer is W.
The layer W is called the convection zone. The lower bit of this zone is hotter (as it is closer to the core) and the outer is cooler. Since heat rises, liquid will rise in this zone, and then cool down, and sink again. This causes a circular transfer of energy.
Y and Z both transfer heat outwards - they are the radiative zone and the inner zone, respectively.
Hope this helps!
Carbon cycle :
- CO2 is given out when organism breathe
- Plants gather this CO2 to produce oxygen
- Oxygen that is produced by the plants is used for other organism's breathing which will given out another CO2 and repeat the cycle
Water Cycle :
- Water from the sea and lake is evaporated and Turned into Clouds
- When atmosphere cool it down, these clouds will condense and turn into rain
- Eventually this rain will flow back to the lake or sea and it will repeat the cycle
hope this helps
The answer is A, the head.
Extra information:
The humeral condyle, epicondyle and trochlea are situated on the lower part of the humerus (the part that is connected to the ulna and radius), so not connected to the shoulder.
