How is over-irrigation damaging to soil? a. it reduces the amount of organic material in soil. b. it results in the accumulation of salt near the soil surface. c. it increases the acidity of soil. d. it removes water from the water table. select the best answer from the choices provided a b c d

Texas bluebonnet plants seen in this photo are an example of which ecological unit?

All living organisms are composed of a. only one cell. b. at least 100 cells. c. at least three cells. d. one or more cells.

Grade 91.)the gravitational pull from the moon words).2.) what is the rate of gravitational 3.)if you drop a hammer, is it more likely to drop handle side down, head side down, or equal chance that it will land either way? why? 4.)a car moves 60km east and 90km west.a.) what is the distance the car traveled? b.) what is the car's displacement5.)what is the average velocity of a car that moved 60 km south in 3 hours? 6.) a car starts from rest and acceleration to 60 m/s over a time of 5 seconds. what is the acceleration of the car? 7.)what is the speed of an object at rest?