Which is a binary star?

a]Algol

b]the Sun

c]Alpha Centauri

d]Polaris

e]the Big Dipper

How does increased travel unite Europe?

In the midwest record setting cold temperatures often result when a

2. Evaluate: 22 + 24/5 of 8 + 6 (2 x 4²/5) 2/4 of 6 (8 + 3/3)

What determines the divisions of eras and periods on the geologic time scale?

1) Scientists do not agree on the causes and effects of global climate change. What is your opinion?

What river shares a name with two African countries?

Most metallic ores are produced by which two types of processes? metamorphic and sedimentary igneous and metamorphic igneous and sedimentary cementation and compaction

Match the ecosystem to its description or example. 1. Desert receives less than ten inches of rain annually 2. Forest much of this ecosystem has been converted to farms 3. Grassland estuaries, coral reefs 4. Tundra world's largest ecosystem 5.

Not all migrants to the new land chose to come due to religious, political, or economic reasons. some are?

What is the disadvantages of the formal sector