What is the velocity of 25 seconds a) 20 b)30 C) 40

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.

Which of these statements best explains how the hydrosphere interacts with the atmosphere to affect global climate? mountains block rain clouds and cause changes in global rainfall and evaporation. humans burn fossil fuels to produce greenhouse gases which cause global warming. humans cut down trees which affects the amount of oxygen in different parts of the globe. greenhouse gases, like carbon dioxide, dissolve in oceans and prevent global warming.

Select the correct lewis structure for fluorine which is group 7a element?