Science & Nature Knowledge Quiz

Photosynthesis

Plants produce approximately 170 billion tons of glucose annually through photosynthesis, providing food for nearly all life on Earth

Mitochondria

A single cell can contain hundreds to thousands of mitochondria, producing about 90% of the chemical energy needed to power the cell's biochemical reactions

Mercury

Mercury's surface temperature can reach 800°F (430°C) during the day and drop to -290°F (-180°C) at night due to its proximity to the sun and lack of atmosphere

Type O

Only about 7% of people have O negative blood, making it both the universal donor and one of the rarest blood types

Moon's gravity

The Moon's gravitational pull is strong enough to move roughly 70 billion cubic meters of water every day in the Earth's oceans

Cerebellum

The cerebellum contains nearly 50% of all neurons in the brain despite only taking up 10% of its volume

Chemical

The average adult stores about 100,000 calories of chemical energy in the form of body fat, enough to sustain life for several weeks

Carbon dioxide

Humans exhale about 2.3 pounds (1 kg) of carbon dioxide per day, which is used by plants for photosynthesis