Answer: diastema
Explanation:
Diastema is condition in which a gap develops in between the two teeth. The spaces or gaps develop in the upper front teeth. The space or gap may appear between the biting teeth (canines or incisors) and in between the grinding teeth (molars or premolars). This occurs when there is unequal relationship develop between the size of jaw and teeth. The space can be too large that it can accommodate the parts of lower canine.
According to the above description, the condition can be considered as diastema.
Answer:
Observing and counting bird populations
Explanation:
Answer:
The incorrect statement is - Energy is created and destroyed when it changes forms.
Explanation:
The conduction or transfer of energy required close contact between particles of the molecules therefore conduction does not take place in gases as they are not in direct contact with their molecules. Radiation involves waves that may generate due to the electromagnetic field.
Convection describes the transfer of energy by movement of dense fluid or fuel to warm the colder are it explains how a heater warms up the inside of a car. The third option is incorrect as energy can not be formed or destroyed in any circumstances or system it will just change it form.
The answer is B. many fungi and bacteria
Answer:
See explanation
Explanation:
Electroplating involves the coating of one metal on another metal. It is an electrochemical process. The positive electrode is the coating metal while the negative electrode is the metal on which the coating is to be performed.
Since copper is to be coated on an iron nail. A copper plate is made the positive electrode while the iron nail should be the negative electrode.
The electrolyte used in the process should be a copper salt e.g CuSO4 solution.
As electrolysis progresses, the copper electrode(positive electrode or anode) gradually wears away due to the fact that the copper ions are going into the solution and are being deposited on the iron nail.
