What does the near-infrared spectrum reveal about trees that is not visible to the naked eye?

• The hidden world of color

• The exact age of the tree

• The tree's height

• The tree's root structure

Why is light considered a crucial energy source for life on Earth?

• It is used for animal communication

• It creates wind patterns

• It helps in the formation of rocks

• It powers photosynthesis in plants

Why do plants appear green to our eyes?

• They emit green light

• They are covered in green algae

• They reflect green light

• They absorb green light

What is the role of chloroplasts in plant cells?

• They absorb nutrients from the soil

• They catch light for photosynthesis

• They store water

• They produce seeds

How do plants protect themselves from high-energy UV photons?

• By absorbing them completely

• By converting them into sound

• By reflecting them

• By using molecular sunscreen

What was the primary photosynthesizing organism before green plants?

• Green algae

• Purple sulfur bacteria

• Fungi

• Moss

How did the first cyanobacteria affect the evolution of green plants?

• They competed for the same light wavelengths

• They used up all the available green wavelengths

• They provided nutrients to green plants

• They blocked sunlight from reaching green plants

What determines the type of light that hits a planet?

• The planet's size

• The planet's distance from the sun

• The kind of star it orbits and its atmosphere

• The planet's magnetic field

What might plant-like organisms on planets orbiting F-type stars look like?

• Green

• Black

• Blue

• Red

Why is it important to preserve Earth's forests?

• They are tourist attractions

• They provide oxygen and support life

• They are a source of minerals

• They are used for building materials