A scientist is investigating the effects of electromagnetic radiation on plant growth. She wants to test the plants with two different types of electromagnetic waves: one with a very long wavelength and one with a very short wavelength. Ideally, the waves will have the greatest possible difference in wavelength. Which two types of waves should she choose? A.
visible light waves and radio waves
B.
infrared rays and ultraviolet waves
C.
radio waves and gamma rays
D.
microwaves and X rays

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. the following chemical equation shows the combustion of ethane. balance the equation by filling in the coefficients. c2h6 + o2 → co2 + h2o

Hydrilla (hydrilla verticillata) is an invasive aquatic plant and one of the most serious aquatic pests in florida. hydrilla has already been introduced to hundreds of bodies of water throughout florida, hydrilla is difficult to control because it grows rapidly and survives in many different water depths and conditions. hydrilla • describe how hydrilla affects native plant and animal species. include both a biotic and an abiotic limiting factor. • suggest one biotic and one abiotic recommendation that could slow the spread of hydrilla

How do living things obtain phosphorus