Answer:
How about these?
... a challenging terrain
... logistical problems
... navigational challenges
Explanation:
Explanation:
1. Living things consist of water and need it to survive.
2. Deserts because the water is evaporated.
3. Use rain barrels, and other water conservation methods.
4. The heat required to convert a solid into a liquid or vapor, or a liquid into a vapor, without a change in temperature.
5. The action of purifying a liquid by a process of heating and cooling.
6. Law stating that the total energy of an isolated system remains constant, and is conserved over time; energy cannot be created or destroyed, but can be transformed or transferred from one form to another.
Answer:
A cultural boundary (also cultural border) in ethnology is a geographical boundary between two identifiable ethnic or ethnolinguistic cultures.
Explanation:
