Plants also detect the daily cycle of light and darkness. Do you know how plants respond to these changes? Some plants open their leaves during the day. It is during these hours the plant can collect sunlight. At night, the plant closes its leaves to prevent water loss. Many plants respond to the change in the length of the day. As days grow shorter, some plants respond by going dormant. Dormant is when a plant suspends its growth. It does this in order to survive. Shorter days signal the coming of winter. Winter in most areas means extreme cold. It is also very dry in the winter months. As winter approaches, some plants respond by their leaves changing color. After the change in color, they fall off. This dormancy period helps trees. It allows them to survive the cold and dry winter. Plants only want to grow when conditions are right.

Question: "Why do plants open their leaves during the day?"

Answer: "To collect water"

Response: no

Fossils give clues about major geological events. Fossils can also give clues about past climates. Fossils of ocean animals on the top of a mountain? Ocean animals have been found on the Earths tallest mountain. Its hard to believe, but it is true. These fossils were found at the top of Mt. Everest. Mt. Everest is the highest mountain on Earth. These fossils showed that this entire area was once at the bottom of a sea. It can only mean that Mt. Everest was uplifted. In fact, the entire Himalaya mountain range was raised. It was forced up from the collision of two continents. Fossils of plants are found in Antarctica. Now, Antarctica is almost completely covered with ice. Plants do not grow in Antarctica. According to fossils, they once did. This means that Antarctica was once much warmer than it is now. These fossils tell us about Antarcticas past climate.

Question: "Which mountain range has the Earth's highest mountain?"

Answer: "Himalayan Mountains"

Response: yes

Mechanical energy is a combination of the energy of motion or position. This type of energy describes objects that are moving or could move. A moving ball can have energy from motion. An arrow can also have the energy of motion. Both are types of mechanical energy. Can you think of some other examples? Where does the energy of motion come from? It comes from the energy created by position. This energy is stored energy. This means it is not moving yet, but it has the potential to move. How can you store energy? The arrow gains energy from the drawn bow. As the arrow is released, the bow releases its stored energy and puts the arrow into motion. Can you think of some other ways to store energy using position?

Question: "What type of energy is released when a drawn bow releases an arrow?"

Answer: "Potential energy"

Response: yes

Let me begin again. I like life on the resort worlds -- always have and, after the upcoming mindwipe, always will. Last year, I rented a small house on Vega IV, a sea world, all islands and reefs and archipelagos, turquoise waters and aquamarine skies, sunrises like symphonies and sunsets like stars gone supernova. There's only one city: called Nuevo Acapulco in La Enciclopedia del Empirio de la Humanidad, it's N'apulco to the locals. The N'apulcans are mostly emigrants from Polaris II; the only difference between them and their Carribbean ancestors is that the ancestors fleeced NorAm tourists. Now the N'apulcans profit from their Hispanic siblings. I don't mean to sound cynical. I suppose I wish to show that I'm still capable of a certain authorial distance, a semblance of dispassionate observation. The following events may indicate otherwise. In fine tourist tradition, most homes on Vega IV are named. Mine was The Sleeping Flamingo, and its outer walls were coral pink. Were they mood-sensitive, they would have changed as I first viewed them. The rental agent, an attractive N'apulcan named Tasha Cortez, was not mood-sensitive either. She said, "It's beautiful, isn't it, Senor Flynn?" My instinct was to gesture curtly with a cupped hand that she lift the wind boat and take me elsewhere. But she was young and attractive (as I have said and may say again) and eager and so happy to be assisting the infamous Bernardo Flynn that I merely raised an eyebrow in mild scepticism. And then, because a playwright cannot resist a promising line, I said, "Your Sleeping Flamingo should be put to sleep."

Question: "Who rented a small house on Vega IV?"

Answer: "Polaris II"

Response:
no