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Angles ABE and EQR are alternate interior angles. This means they are the same thus angle EQR = 60˚. We know that the sum of the interior angles of a triangle is equal to 180˚ and we know that angle QER =...

Firstly, you need to understand that the two equations are interlinked, therefore the x and the y variables are the same values in both equations. To make things easier, we can number both equations. What...

It prevents evaporation of water from the leaf to reduce the loss of water

Any 3 from. Skin. Mucus -in nose, trachea (cilia waft the mucus into the stomach to be destroyed) . Stomach acid. lysosomes (e.g. in tears and saliva)

Endothermic reactions take in heat from the surroundings, whereas exothermic reactions release heat to the surroundings. Exothermic reactions release heat as the energy released from the bonds being made ...