The diagram indicates that the tilt of Earth's axis and Earth's revolution around the Sun cause Earth to experience ?

G day and night ma g

Explanation:

The figure is representing the motion of revolution of the Earth around the Sun.

This motion lasts approximately 365 days (one year). Since the axis of rotation of the Earth is tilted (by about 23 degrees from the vertical), the amount of light received by different parts of the Earth at the different part of the year is different.

In fact, we observe 4 "extreme" cases:

- Situation at the bottom: here the situation is symmetrical in the two hemispheres, which receive an equal amount of light. So, we have 12 hours of daylight and 12 hours of dark at every point on Earth - this is called

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.

the answer is c. nacl