the hardness of a unknown mineral can be found by

A) subjecting it to a strength test

B) calculating its density

C) comparing it to the other known samples using a scratch test

D) grinding it on a streak plate

The apparent deflection of air masses to the right or left (depending on latitude) as they move from one latitude to another is called the:

Why are invasive species dangerous to the environment? Check all that apply. A. They outcompete native species for resources. B. They compete for native mates and reproduce slowly. C. They cause harm to property that can cause economic loss. D.

Where are mid-ocean ridges formed A. where two oceanic plates move apart B. where two continental plates move apart C. where two continental plates push together D. where an oceanic plate subducts under a continental plate

Which event marked the beginning of the ongoing violent conflict between Arabs and Israelis? A. Great Britain received the mandate of Palestine after World War I and Arabs rebelled. B.

Mosses, lichens, and shrubs can be found where in russia?

2. One ancient tradition in Japan that remains part of daily life is respect for A urban life B elderly people Coutsiders D individual success

N what direction does wind curve in the northern hemisphere? in the southern hemisphere?

Approximately how much more energy is released in a 6.5 richter magnitude earthquake than in one with magnitude 5.5?

Which river flows southward through southeast Asia into south China sea?

In ukraine which ethnic group forms the majority if the population