These are segments of the columnar stem of what fossil echinoderm animal? Each disk is a single crystal of calcium carbonate, and in life the animal's living tissue threaded through the hole passing through the stack of disks.

if you went camping with a friend in oklahoma, you could choose to go fishing in the gulf outside his backdoor. true or false

True/False: The Northern Hemisphere experiences winter when Earth is farthest from the sun.

How do you take notes to record the content of your classes?

The 3 stages of the water cycle are a. evaporation c. condensation b. precipitation d. all of the above

Which is NOT true of the Endangered Species Act? (a) It is an example of the single-species approach to conservation. (b) It prohibits the hunting or harvesting of some listed species.

What river cuts through this service European countries including Germany and Austria

Why did the first fleet take the shorter route along the entire west coast of africa?

Briefly describe what Charles Darwin observed about the finches on the Galapagos island?

In what two ways does the El Niño wind pattern affect human habitation? It creates fertile deltas that humans can inhabit. It brings warm temperatures to the eastern Pacific. It causes violent and life-threatening volcanic eruptions.

In what ways can erosion be both beneficial and harmful to agricultural communities