Soil Nutrients Deficiency and Replenishing
Plants mostly use water and carbon dioxide from the air to grow. But nutrients like nitrogen (N), phosphorus (P) & potassium (K) are also key ingredients.
Articles
Mass Extinctions: The 5 Biggest Dying Events in History
Earth has witnessed 5 mass extinctions where life experienced an abrupt ending. Time and time again, nature has always found a way to reshuffle the deck.
A Complete Guide to Oceanography
Water is all around us. In fact, 70% of Earth is water. Fisheries, water cycles, weather & climate, shipping routes. Here are the branches of oceanography.
Endosymbiosis: The Origin of Eukaryotic Cells
Endosymbiosis sparked the origin of eukaryotic cells. It’s the idea that a prokaryote engulfed a bacteria and became mitochondria part of eukaryotic cells.
17 Branches of Astronomy
Astronomy is all-encompassing that studies matter outside of Earth. The branches of astronomy are astrophysics, astrometry, astrogeology and astrobiology.
How Gravity Sculpted the Earth
What brings order on Earth is gravity. For all matter, it’s always at work. This is how gravity works for ocean tides, planet formation and escape velocity.
Biology Careers: What Do Biologists Do?
Biologist work with wildlife, marine life and vegetation. They analyze how living things, flora and fauna are composed like their structure & composition.
Human Cells vs Bacteria: Microbiota in Your Body
By 10 to 1, colonies of bacteria outnumber human cells. We rely on bacteria because they break down sugars, help digest food and protect against infections.
5 Soil Formation Factors: How Rocks Weather into Dirt
Soil formation is vital for food production and plant growth. Weathering is the process that breaks rock down into soils. Without it, soil wouldn’t exist.
What is the Goldilocks Zone?
Lucky for us, Earth is in the Goldilocks zone. The range where liquid water persists is 0.99 to 1.7 AU. But it doesn’t necessarily mean life or water exists.
Geology Careers: What Do Geologists Do?
Geologists study bedrock and surface rocks. They best understand how Earth’s land forms and rock change over time (physical and chemical structure).
Ice Ages: Glaciations in Geologic History
Earth has experienced 5 large ice ages. During these frigid times, hefty layers of ice smothered the planet with temperatures 10°C lower than it is today.
Human Timeline: How Long Have Humans Existed?
The earliest anatomically modern human fossil found was dated at about 200-300,000 years old in Morocco, Africa. They had modern faces and used stone tools.
Biological Weathering: How Living Things Break Down Rocks
Biological weathering can occur from mechanical force and chemical reactions such as through plants, bacteria, fungi, burrowing animals and living organisms
The History of Oxygen in Earth’s Atmosphere
In Earth’s atmosphere history, oxygen levels have changed significantly. This includes hydrogen, helium, carbon dioxide and nitrogen composition in the air.