Question - A scientist has discovered a new species of dinosaur and wants to know if this species belongs to the sauropod group.

A scientist has discovered a new species of dinosaur and wants to know if this species belongs to the sauropod group. What evidence should the scientist look for to prove the new species is a sauropod?

Answer: 

The scientist should look for evidence that the species walked on four legs, was very large with a long neck and small head, and grew rapidly from the time of hatching. 

Question - How did the python invasion of the Everglades affect the other animals that live in the Everglades?

How did the python invasion of the Everglades affect the other animals that live in the Everglades?

Answer: 

The python invasion of the Everglades threatened other animals that live in the Everglades because the pythons prey on some of them. The pythons can eat animals of different sizes. They especially enjoy dining on small mammals and birds. Studies have shown that since their appearance in the Everglades, the numbers of small mammals in the area dropped significantly.

Question - How does the Northern Hemisphere of the earth tilt when northern Alaska is experiencing the polar night

How does the Northern Hemisphere of the earth tilt when northern Alaska is experiencing the polar night? Use information from the text to support your answer.

Answer: 

The Northern Hemisphere is tilted away from the sun. The text states "the Northern Hemisphere is tilted in such a way that the sun doesn't come over the horizon in northern Alaska for a little over two months." Furthermore, the Northern Hemisphere is tilted towards the sun when northern Alaska is experiencing the midnight sun, so the opposite is most likely the case when northern Alaska is experiencing the polar night. Based on these two pieces of information, students can conclude that the Northern Hemisphere is tilted away from the sun when Northern Alaska is experiencing the polar night.