I would say this is A. Head , hope this helps !
<span>The question says,'the beginning of every workout should start with .......... The correct option is A. Work outs should start with warming up, this gently prepare the body for exercise by increasing the heart beat rate and circulation, this loosen the joints and increase the blood flow rate to the muscles. Strectching the muscles prepare them for exertion and prevent injuries.</span><span />
Photosynthesis its called.
Indoor pollution can be reduced by reducing the main causes of this pollution which are: avoid smoking indoor, reducing use of carpeted floors, proper ventilation, keep trash baskets covered, minimizing the use of air-fresheners and irritating perfumes, use exhaust fans. The outdoor pollution can be reduced by minimizing the use of vehicles whose burning fuel contribute a lot to outdoor air pollution, the chimneys of industries and factories should have filters fixed in so that harmful substances may not be exposed to air.
