Which word names a huge collection of stars, planets, rocks, and gases held together by force of gravity?

What is the pH of 0.001 mol dm-3 solution of sodium hydroxide

Where is europe north east south west

Which human activity is most affected by the increasing number of dead zones in the ocean

What is samba carioca?

What moderates much of the air tempature over northwestern Europe

Which of the following is not one of the three branches of the United States federal government?

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

Which of the following is TRUE of independent agencies? a. They are created by Congress b. They are independent of both the President and the Executive Branch c. They are located only in the Cabinet Department d.

Use your knowledge of plate tectonics to explain why the supercontinent of Pangaea could have existed long ago. How did Pangaea break apart, and how were our continents formed? Explain your reasons in at least two to three sentences.