Balance. The fluid in your ears uses pressure to know what orientation your head is in.
Answer:
B. Carbon dioxide
Explanation:
A catalytic converter is designed and placed in the exhaust of most automobiles to remove harmful gases from escaping into the environment.
The converter uses palladium and platinum which are both catalyst to reduce harmful gases such as nitrogen oxide which causes acid rain, carbon monoxide which affects human haemoglobin and other hydrocarbons into less harmful ones.
The catalytic converter helps to convert carbon monoxide, a product of incomplete combustion of hydrocarbons into less harmful carbondioxde. Carbon monoxide is a very toxic gas. It causes harm to both plants and animals as well.
6:12:6: - this simplifies to 1:2:1 (answer)
You get the simplest form by dividing each of the 3 numbers by 6.
B.) Digestion
when food passes through the gastrointestinal tract, the food get mixed with digestive juices which break down large food molecules. The body absorbs these molecules/nutrients through the small intestine and enter your blood stream. Your blood stream delivers these nutrients to the rest of the body.