What are desirable agronomic characters of crop production?

What’s the scientific notation for the number 6,840,000,000

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

What are the similarities of physical and chemical change ?