What are the branches of geology? It can be divided in different ways. We divide fields into tectonics, sedimentology, topography, chronology & astrogeology
The Mesozoic Era had a lot of “firsts”. For example, it had the first birds, first mammals, first dinosaurs and first flowering plants on Earth.
Because the Earth is tilted on its axis, it’s why we have seasons. When Earth receives more sunlight on one side, it’s summer. And vice versa for winter.
Carbon is essential for living things and making cars move. It takes up various forms through photosynthesis, decomposition, respiration and combustion.
Nitrogen transforms into several different forms in the 4 steps of the nitrogen cycle – nitrogen fixing, decomposition, nitrification & denitrification.
Earth is covered with these 3 types of rocks are: (1) sedimentary rocks (2) metamorphic rocks and (3) igneous rocks. How they are different from each other?
Since the year 2000, the International Hydrographic Organization (IHO) started recognizing 5 oceans: Pacific, Atlantic, Indian, Arctic and Southern Ocean.
Earth’s crust is all around us. It’s the layer we live on. But did you know that Earth’s crust is composed of oceanic and continental and oceanic crust?
Alpha Centauri (Rigil Kentaurus) is the closest star system away from our sun. It’s about 4.3 light years (or 25 trillion miles) away from Earth.
Plate boundaries interact with each other in 3 primary ways. The types of plate tectonic boundares are divergent, convergent and transform (conservative).
The exosphere is the upper part of Earth’s atmosphere. It starts at about 500 km and gradually extends into the vacuum of outer space at about 190,000 km.
Eutrophication occurs in water bodies when too many nutrients are introduced. Over-fertilization of water causes algae to grow blocking sunlight for plants.
Streams carrying too much sediment clogs the entrance into the basin. As sediments dump in, water flow decelerates and widens the entrance forming a delta.
Magma is liquid rock with dissolved gas at the interior of Earth. When magma reaches the surface, it’s lava. The difference for lava vs magma is location.
Asteroids are odd-shaped rocks made of metal and other elements. There are about 100,000 known asteroids mostly in the asteroid belt between Mars & Jupiter.