A balloon is filled with helium gas at 27°c and a pressure of 1.0 atm as the balloon rises the volume of the balloon increases by a factor of 1.6 and the temperature decreases to 15°c what is the final pressure of the gas ( assuming none has escaped)

Which of the following is a way that minerals are used? a. industry construction technology d. all of the above

The theories on the expansion of galaxies maybe re-examined to strengthen science should not be tested to strengthen science will weaken scientific knowledge if they change will become laws if they don't change

The graph shows the amount of global warming happening in different ecosystems. which populations of organisms will likely decline the most as a result of climate change, and why? a. coral reefs because of the loss of the symbiotic algae living within their bodies b. penguin populations because the fish they eat will move into warmer waters c. mountain-dwelling birds because rising sea levels will relocate their food sources d. large cats in the rainforest because of decreased habitat loss for their prey