A milliNewton.
the metric unit of force and weight is a: newton
The basic metric unit for weight is the newton.
Weight is force. The metric unit of force is the Newton.
Because a pencil has a mass of a few grams.
Centimetre
An appropriate metric unit of mass for a pencil would be grams.
Oh Dear!!!! your English grammar is at fault. The question should read ' Which metric unit is the mass of an orange?'. NB 'Witch' is a female sorceress 'Which' is the question. To answer the question, an orange would be weighed in grams.
the metric unit of force and weight is a: newton
The basic metric unit for weight is the newton.
Weight is force. The metric unit of force is the Newton.
Any metric unit would do. But it might be easier to pick something smaller than the length of the pencil, like a centimeter, or a millimeter.
centimeter
Nothing can 'weigh' two grams, because the gram is not a unit of weight (it is the metric unit of mass). However, two grams would likely weigh something close to the weight of a pencil.
Because a pencil has a mass of a few grams.
The metric unit for an elephant's weight is typically measured in kilograms (kg).
You can use millimeters.
Centimetre