How Old Is Our Oceans?
Quick Fact The ocean’s water is roughly 4 billion years old —give or take a few hundred million. That’s right when Earth was still cooling off from it…
Climate & Weather
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How Fast Does Murraya Paniculata Grow?
How Fast Does Murraya Paniculata Grow? Murraya paniculata grows about 0.5 to 1 meter (1.6 to 3.3 feet) per year under ideal conditions, reaching 3 to …
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How Do You Keep Grass Seed From Freezing?
Quick Fact: Grass seed can survive brief freezes, but germination stalls below 50°F (10°C) and resumes only when soil warms to about 55°F (13°C). Why …
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Which States Have The Worst Air Quality?
Which states have the worst air quality? As of 2026, California ranks as the most polluted U.S. state. Los Angeles County blew past the EPA’s annual f…