1. Graying Generating Station, average year *Electricity generated = 150,000,000 kWh
*Woodchips consumed = 250,000 tons
What is the efficiency of the plant?

Select the statement that is not true about the hubble telescope: a. it orbits above the earth, avoiding the light distortion caused by our atmosphere. b. it is mounted high on a hawaiian mountaintop to provide stable images. c. it has allowed scientists to see the formation of far-away stars and solar systems, leadin some certainty about the history of our own solar system. d. it has documented the destruction of far-away stars and galaxies, leading to some certa the theories of the life cycles of stars.

What statement is true about all chemical changes? a) chemical changes can be undone. b) chemical changes cannot be reversed. c) chemical changes change the color of objects. eliminate d) chemical changes do not form new products.

  usually, loads of more than pounds require the assistance of a second person.           a. 40   b. 20   c. 50   d. 30