in some regions, for example, Great Britain or California, winter precipitation is often higher than summer precipitation and so the groundwater storage is not fully recharged in summer. Consequently, the water table is lower during the summer. This disparity between the level of the winter and summer water table is known as the "zone of intermittent saturation", wherein the water table will fluctuate in response to climatic conditions.
The surface of the moon is secured with dead volcanoes, sway holes, and magma streams, some noticeable to the independent stargazer. Early researchers figured the dull stretches of the moon may be seas, thus named such highlights horse, which is Latin for "oceans"
According to the big Splash theory, the Moon framed out of the trash left over from a crash among Earth and a galactic body the size of Mars, roughly 4.5 billion years prior, in the Hadean age; around 20 to 100 million years after the Solar system blended.
Lava comes in two primary appearances: Pahoehoe and aa. The reason why they have two different types of appearances is because the older aa in the photo has weathered and the iron in it has oxided somewhat, giving it a reddish and chunky appearance. It also moves fast. Pahoehoe has a flow that is comparatively smooth or a "ropy" surface. Pahoehoe doesn't have the chunky appearance.
