Which of the following is an impact of an increase in motor vehicles in cities?

What is important to study for nios grade 12 chemistry? i have only one month left.

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

Which of the following is the molecular formula for a simple sugar? a. cooh b. h2o c. oh d. c6h12o6