General Knowledge 1
What do plants need to grow?
Do all plants germinate from seeds?
No, some plants grow from different parts.
Does photosynthesis happen at night?
No, because plants need light.
What is the definition of plants?
A plant is a living thing that stays in one place, has roots and leaves, and makes its own food using sunlight. Common types include trees, shrubs, grasses, and ferns.
What percentage of Earth's surface is covered by plant life?
The area covered by all the plants and trees on Earth is equal to an average of 32 percent of Earth's total surface area – oceans, lands, and permanent ice sheets combined.
Which metal is present in chlorophyll?
Magnesium (Mg) is a metal found in chlorophyll.
What is the photosynthesis equation?
6CO2 + 6H2O + Light = C6H12O6 + 6O2
What is the definition of reforestation?
the process of replanting an area with trees
What's the tallest tree species in the world, and how tall can it grow?
The Redwood trees (located in California) are the tallest trees on Earth. These amazing giants can grow up to 380 feet tall - that's about as tall as a 37-story building!
What color is carotenoids?
Carotenoids reflect yellow, orange, and red light, contributing to the vibrant colors of many fruits and vegetables, such as carrots and pumpkins. They play a role in photosynthesis by capturing light energy and protecting plants from damage.
What is the definition of photosynthesis?
the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar
Why do people sometimes say that sunflowers are "nature's compass," and what's the scientific name for this behavior?
Sunflowers can track the movement of the sun across the sky. This behavior is called "phototropism." In the morning, young sunflower faces point east toward the rising sun, and throughout the day, they slowly turn their heads to follow the sun westward. During the night, they slowly turn back east to wait for the morning sun again.
What is chlorophyll?
Chlorophyll reflects green light, making plants appear green. (special green pigment)
What is the definition of stomata?
Stomata are tiny holes (like little mouths) on the surface of leaves and stems that help plants breathe.
What was the first organisms to produce oxygen?
Cyanobacteria are probably the first organisms on Earth that have known to have produced oxygen
What is phototropism?
Phototropism is when plants grow or bend toward light.
What is propagation?
The process by which a plant grows from a part that is not a seed. (limbs and stems)