A sum of Rs 140 is divided into two parts. If the greater part is Rs 20 more than the double of smaller part, find the parts of sum.
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Look at the images of different rocks. which rocks have a fine-grained texture? check all that apply. 1 2 3 4 5

According the inverse square law, doubling the distance from the source of the sound, a speaker, for example, will drop the sound 6 db each time. if you were standing in the back of an auditorium, 32 feet away from a speaker not using any amplification, would you be able to hear a speaker clearly? why or why not?

Which of these is an example of land degradation? a. containers designed to store pollutants leak. b. fertilizers provide too many nutrients to crops. c. garbage is buried so the land can be reclaimed later. d. a drought kills all the plants in an area, leaving bare land