Question

the source of a river (la fuente de un río)
a stream that flows to a larger stream or body of water (una corriente que fluye a una corriente o cuerpo de agua más grande)
referring to electricity that is created by using the energy of water currents (refiriéndose a la electricidad que se crea utilizando la energía de las corrientes de agua)
with respect to weather, mild; not extremely hot or cold (con respecto al clima, templado; no extremadamente caliente o frío)
question 2
spatial patterns (patrones espaciales)
physical characteristics (características físicas)
temperate (templada)
hydroelectric (hidroeléctrica)
headwaters (cabeceras)
cultural characteristics (características culturales)
tributaries (afluentes)

Explanation:

1. The source of a river is called headwaters.
2. A stream that flows to a larger stream or body of water is a tributary.
3. Electricity created by using the energy of water - currents is hydroelectric.
4. Mild weather (not extremely hot or cold) is temperate.

Answer:

1. headwaters (cabeceras)
2. tributaries (afluentes)
3. hydroelectric (hidroeléctrica)
4. temperate (templada)