Answer:18
Explanation: gilr i got grade results too
The heat from hot liquid can make the cup it’s in hot. When you make some food in a pot with boiling water and stick a metal spoon/fork into the pot to move the food around the boiling water then makes the spoon/fork hot.
Pros: It is abundant, and can be used without interruption, cleaner than fossil fuel. Cons: Can result in air pollution, takes a lot of energy to produce, can be seasonable and competes with food production. Landfill gas, solid waste energy comes from harnessing the decomposition of organic material.
<span> Serratia marcescens primarily produces a bright red pigment called prodigiosin. Depending on the synthesis (partial or complete) of prodigiosin, the colour of the colony can be different. At the room temperature, prodigiosin production decrease which results in the white colour of Serratia. Serratia can also be colourless due to prolonged sunlight (UV mutagenesis).</span>
