Why are chemical sanitizers ineffective in killing microbes present in cracks and crevices?

Identify the electromagnets with poles that are reversed from the electromagnet shown above

Calculate the estimated density of each ball. use the formula d = m/v where d is the density, m is the mass, and v is the volume. record your calculations in table a of your student guide. given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. record your prediction in table a. what is the estimated density of the table tennis ball? record your answer to the nearest hundredth

How does climate change cause the ocean's thermohaline current to slow down?