<span><span>The answer is C. Planets.
</span><span>The word "planetes" in Ancient Greek means "the wanderer". This is also where we got the term planets. During the Hellenic period, the celestial objects that they referred to as "the wanderers," were the sun, moon, Mercury, Venus, Mars, Jupiter and Saturn. </span></span>
The correct answer is A. the Central Lowlands.
The Central Lowlands are a very interesting part of Australia. Big portion of this part of the country is actually lower than the sea level, so a slight increase in the sea level can make it a shallow sea inside of the continent. The biggest lakes of the country are located in here, but the problem is that most of the water is saline water because it is a remnant of the ocean water that once penetrated in here. It's a harsh place for living, while there's a short rainy season where huge amount of rain falls and everything turns green, after that it is dry for most of the year and it is pretty much desert like.
The Earth lithosphere thicker in the vicinity of trenches.