Answer:
Volume: (Prefix-)liters
Mass: (Prefix-)grams
Please see explanation!!
Explanation:
Metric units use one base unit (liters for volume, grams for mass) and a prefix to indicate size (Ex: kilometers, milligrams, centiliters). I don't know your options as far as prefixes, so here's a list of the most common and their values.
From largest to smallest:
Tera: 10^12
Giga: 10^9
Mega: 10^6
Kilo: 10^3
Hecto: 10^2
Deka: 10^1
Deci: 10^-1
Centi: 10^-2
Milli: 10^-3
Micro: 10^-6
Nano: 10^-9
Pico: 10^-12
