Planetary Plants

What is the primary role of plants in Earth's food web?

• To form the base of the food web

• To produce oxygen for humans

• To provide shelter for animals

• To absorb carbon dioxide

Which of the following is NOT a requirement for plant life as discussed in the video?

• Gases

• Soil

• Water

• Light

How might plants on Mars obtain the light they need for photosynthesis?

• From the Sun

• From artificial lights

• From the planet's core

• From other planets

What color might plants be on a planet orbiting a dim red dwarf star?

• Orange

• Grayish black

• White

• Green

In what way could plants adapt to low gravity environments?

• By growing underground

• By floating like hot-air balloons

• By developing thicker stems

• By becoming smaller