Consider two gases A and B in a container at room temperature . What effect will the following changes have on the reaction rate between the gases? 1. The pressure is increased. 2. The number of molecules of gas 'A' is doubled. 3. The temperature is decreased.

Polar bears give birth and hunt on sea ice. which of the following would polar bears survive during the melting of arctic ice? growing another layer of fur during summer migrate inland to search for different food sources staying put until the ice refreezes sticking to the usual diet of seals