Explanation

Tectonic Plates Movement (Most Common): The Earth's crust is broken into large tectonic plates that constantly shift. 

Volcanic Activities: Movement of magma beneath volcanoes can cause shifts and trigger earthquakes.

Tectonic Dislocation (Faults): This refers to the actual fractures (faults) in the crust where plates slide past each other, which is the direct mechanism for most plate-related earthquakes.

Other Causes: Human activities (mining, large reservoirs) and even large collapses of rock can also cause minor seismic events. 

Explanation

The troposphere is the atmospheric layer that contains most of the atmosphere's gases. 

Explanation

The sun's energy, called solar radiation, isn't equally distributed across the globe because of Earth's spherical shape.

This “unequal helping” of solar radiation across our planet is effectively what causes weather and climate.

Explanation

When the moon isn't visible from Earth, it's the New Moon phase, occurring when the Moon is between the Earth and Sun, so the sunlit side faces away from us, making it appear dark or invisible. 

New Moon

Full Moon (fully visible)

 First Quarter (half visible)

 Last Quarter (half visible) 

Explanation

Wind blows from areas of high pressure to areas of low pressure.

This is because air molecules move from areas of higher concentration (high pressure) to areas of lower concentration (low pressure) to equalize the pressure difference.

This movement of air is what we feel as wind.