I think it is building and managing of irrigation systems
A waves frequency (in Hertz) is how many crests pass by a point per second. easily confused with period, which is the amount of time it takes for a full wave to pass by a certain point
Answer:
Explanation:
——»To measure centimeters, we can use ruler.
- Use a ruler with the side marked either cm or mm. Align the edge of the object with the first centimeter line on the ruler, then find the length in whole centimeters, or the larger numbers on the ruler.
Answer:
there are many stars in the milky way galaky
Explanation:
uncountable stars
2 is sedimentary and 3 is metamorphic
