Sunlight
What vitamin does sunlight trigger the production of?
Vitamin D in the skin
True or False: Space is always night?
True
True or False: Humans evolved to see the color green better than any other color?
True!
Do trees die of old age?
Trees never die of old age. Only disease, humans, disasters, or some other event.
What springs in Florida feeds an entire river and discharges millions of gallons a day of water?
The Silver Springs
What is sunlight?
electromagnetic radiation from the sun that reaches the earth, emitted by the sun
True or False: Earth has more daytime than nighttime.
False
Why didn't plants just evolve to be black?
They'd overheat and damage their cells.
How old is the world's oldest tree?
Over 9500 years old. "Old Tjikko" is a clonal spruce tree in Sweden and has ben alive since the Ice Age.
Is spring water always pure?
No. They can contain radioactive elements, arsenic, or heavy metals.
What inhabited area receives the very least amount of sunlight?
The Faroe Islands, the capital receives an average of 840 hours a year.
How long does it take your eyes to adapt to the darkness?
About 20-30 minutes
What mammal appears green, but it's actually just green algae in their fur?
Sloths
Some trees explode to spread seeds. What speeds can they shoot up to? (Think: Dynamite Tree.)
150 MPH or 240 KM/H.
Where are there springs that change colors in America?
Yellowstone. The Grand Prismatic Spring, shows some vivid rainbow colors due to heat-loving bacteria.
True or False: If the world went dark, all fish would die.
True! Even when top algae and fish died and sank to the bottom of the ocean, the decomposition process consumes oxygen.
True or False: Owls have higher blood pressure and heart rates at night?
True
Was the "green sickness" a real diagnosis?
Yes, during medieval Europe, women with anemia were said to suffer from "the green sickness."
True or False: Trees can "count?"
True - some species literally keep track of seasons and count cold days to know when to bloom.
What do some freshwater springs pre-date?
Dinosaurs. Some have been trapped underground for thousands to over a million years. I.E the Kidd Creek Mine in Canada has water from 1.5-2 billion years age.
Who is the Greek Sun Goddess?
Theia, the goddess of sight and brilliance.
Does the moon have "moonquakes?"
Yes - caused by gravitational stress from Earth and cooling lunar crust.
Human produce green pigment in their bodies?
No, there's no true green pigment in human biology, even bruises are just breakdown products of blood.
Why do the Japanese practice "Forest Bathing," a.k.a Shinrin-yoku?
Phytoncides - natural compounds released by trees that reduce stress hormones.
What did ancient peoples used to believe springs were the gateway to?
The underworld. Often ritual sacrifices were made at springs.