Famous 4000 mile long manmade structure in china

What do most scientists think caused the mass extinction of dinosaurs and other organisms at the end of the Cretaceous Period? Volcanic eruptions covered large areas with lava. The dinosaurs ate too many other organisms and then starved.

The theory of continental drift suggests that- A. the continents have moved in the past B. the continents are slowly moving now C. the continents have moved in the past and are still moving D. the continents moved in the past but are not moving now

3. Based on your knowledge of Global History, identify two reasons why the Roman Empire declined,

What is isomorphous substitution and how does it affect the charge of layer-silicate clay minerals? What is the dominant type of charge (permanent or variable) on layer- silicate clay minerals and why?

describe three different soil chemical or physical properties that are affected by soil organic matter content. In full detail explain how each soil characteristic is affected.

Describe why a "permanent underclass" has developed in many cities, and the problems that result.

What is a disconformity? A. an intrusion that runs between rock layers B. an intrusion that cuts across another rock C. when a sedimentary rock is deposited on top of an eroded non-sedimentary rock D.

What is the action of unearthing something, especially at an archaeological site

What type of damages can you cause while driving

Which of these is an environmental consequence of the shrinking of the Aral Sea? A. The salt content of the water has increased. B. More nesting birds have come to its beaches. C. Fish populations have increased to unhealthy levels. D.