I believe it would be
1. A -gerunds are verbs that function as nouns.
2. A- Texting is a descriptor, not a verb or noun.
3. B - "to skydive" is not describing anything. rather, its mentioning an activity (noun- a thing).
Answer:
In antiquity, systems of measurement were defined locally: the different units might be defined independently according to the length of a king's thumb or the size of his foot, the length of stride, the length of arm, or maybe the weight of water in a keg of specific size, perhaps itself defined in hands and knuckles.
Systems of Measurement: there are two main systems of measurement in the world: the Metric (or decimal) system and the US standard system. ... The US Standard system uses units that have no predictable relationship to each other.
Explanation:
For example, there are 2 cups in a pint, but 4 quarts in a gallon.
