12. How does the present government discourage the consumption of alcohol ?​

Answer:

Pyrometallurgical treatment may produce products able to be sold such as pure metals, or intermediate compounds or alloys, suitable as feed for further processing. Examples of elements extracted by pyrometallurgical processes include the oxides of less reactive elements like iron, copper, zinc, chromium, tin, and manganese.

Pyrometallurgical processes are generally grouped into one or more of the following categories:

calcining,

roasting,

smelting,

refining.

Most pyrometallurgical processes require energy input to sustain the temperature at which the process takes place. The energy is usually provided in the form of combustion or from electrical heat. When sufficient material is present in the feed to sustain the process temperature solely by exothermic reaction (i.e. without the addition of fuel or electrical heat), the process is said to be "autogenous". Processing of some sulfide ores exploit the exothermicity of their combustion

Roasting is an application of the pyrochemical process in metallurgy​.

• Roasting is a pyrochemical process in which the ore is heated below its melting point in the presence of oxygen or air.
• Roasting is usually done in a reverberatory furnace.
• Ex: In a reverberatory furnace, heating zinc blende with oxygen produces zinc oxide as a solid and sulfur dioxide as a gas.
• 2Zns(s) + 3O2(g) → 2ZnO(s) + 2SO2(g)

Answer:

1 metres because u = v in case of a plane mirror.

Answer:

1m is this from his image as virtual image distance is equal to actual distance

Answer:

may it helps you

Explanation:

जाहिरात लेखन

Answer:

herbivore is an animal anatomically and physiologically adapted to eating plant material, for example foliage or marine algae, for the main component of its diet.

example.cow buffalo

Answer:

Animals that eat plants are known as herbivores or herbivorous. Eg. Deer, cow, goat