Plants and Life on Earth
Why are people dependent on plants?
People depend on plants for food and they breathe in oxygen from plants.
Do we have to have people for fruits and vegetables to grown?
We do not people for fruits and vegetables to grow. In early times people ate fruits and vegetables that grow in nature.
What are pluots?
Pluots are a combination of plums and apricots.
How do greenhouses help farmers?
Greenhouses help farmers to be able to grow fruits and vegetables all year long in all types of environments.
What is made from the leaves of the willow tree?
Aspirin is made from the leaves of the willow tree.
What do plants give off?
Plants give off oxygen.
How did farms help people from long ago?
Farms helped people from long ago because they allowed people to stay in one place.
What are Apriums?
Apriums are a combination of apricots and plums.
What is hydroponics?
Hydroponics is the process of growing plants in water in which minerals have been added.
What are two ways that people use plants?
People use plants to make fuel called ethanol and to make many medicines.
What do people breathe in and out?
People breathe in oxygen and breathe out carbon dioxide.
What led to the first farms?
The discovery that fruits and vegetables could be grown by planting seeds led to the first farms.
What happens during cross-fertilization?
During cross-fertilization the pollen from one plant is used to fertilize the seed of another plant.
How do farmers make photosynthesis occur faster in greenhouses?
Farmers make photosynthesis occur faster in greenhouses by keeping the lights turned on at night.
What is ethanol?
Ethanol is a clean-burning fuel.
Can plants live without people? Why or why not?
350,000 plants that grow on Earth could live without people because they are able to make their own food.
How many types of fruit can grow on one tree?
Two types of fruit can be grown on one tree with grafting.
How has cross-fertilization helped wheat?
Cross-fertilization has helped to grow new kinds of wheat that grow well in cold weather.
How can plants by grown in areas where soil is not rich?
Plants can be grown in areas where soil is not rich with a process called hydroponics.
Why is ethanol good to use?
Ethanol is good to use because the supply is not limited, it is made from raw corn, and it does less harm to the environment than gasoline.
How does photosynthesis work?
During photosynthesis green leaves of plant soak up sunlight and take in carbon dioxide. The roots of plants gather water and minerals from the soil. Plants give off oxygen and make their own food.
How can farmers get better crops?
Farmers can get better crops by keeping seeds from the best plants and planting them the next year.
How has cross-fertilization helped farmers?
Cross-fertilization has helped farmers improve plants and make them better. It has farmers produce new fruits and vegetables.
Which fruits and vegetables are very easy to grow with hydroponics?
Tomatoes and melons are very easy to grow with hydroponics.
How can plants help scientists in the future?
Plants will help scientists to make many new medicines and other products.