Scientific research supports the existence of Alfred Wegener's proposed supercontinent, Pangaea, approximately 300 million years ago. Pangaea subsequently broke apart, and the pieces—our modern continents—migrated to the positions they occupy today
Based on your knowledge of the mechanics of tectonic motion, do you think there is a likelihood of another supercontinent forming? If so, where?
What will be an ideal response?
Answer: The break-up of Pangaea led to the creation of the Atlantic Ocean. The divergent plate boundary that exists today is still spreading, enlarging the basin and pushing North America, South America, Europe, and Africa farther apart. As this basin grows, the Pacific Ocean basin shrinks due to the convergent plate boundaries around the margins of the Pacific plate. Recent studies indicate that the North American and Eurasian continents will meet over the North Pole, though it would be reasonable for students to suggest that the next supercontinent would form in the Northern Pacific.
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Dew PointFor the following questions refer to the temperature and dew point data in the following cities: CityAir Temperature (ºC)Dew Point (ºC)City A3524City B-12-12City C-1-6City D106Ignoring the contributions of wind, which of the following statements explains why a baseball can be expected to travel farther in warm, humid air?
A. Water vapour helps to lift the baseball even higher. B. Water vapour is less dense than dry air. C. Water vapour reduces the weight of the ball. D. Water vapour sticks to baseballs.
Where is stress concentrated in classical boudins?
What will be an ideal response?
The two most dominant language families in Africa are
A) Niger-Congo, Altaic. B) Niger-Congo, Afro-Asiatic. C) Nigerian, Arabic. D) Arabic, Persian. E) Afro-Asiatic, Altaic.
The formula of a particular compound can be written as (i) C4H10 (ii) CH3CH2CH2CH3 (iii) CH3(CH2)2CH3 Which of the following is true?
A) All of these provide exactly the same amount of information. B) Formula (ii) provides more information than formulas (i) or (iii). C) Formulas (ii) and (iii) provide exactly the same amount of information. D) No two of these provide exactly the same amount of information.