Answer:
A.) it can show changes that occur in many different parts of earth at the same time
D.) it can be used to show how the parts of the cycle relate to one another
Explanation:
When a scientific diagram is used as a model, it explains the phenomena described in the research.
Scientific models describing water cycle help students understand that a group of parts which relate can combine to form a larger system. The different parts of a water cycle such as evaporation and condensation all work together to facilitate continuity of the water cycle. Additionally, the models highlights the individual processes contributed by the stages of water cycle showing changes and resulting processes.
Option B and C are incorrect because the model diagrams show much details including individual processes contributed by each of the parts leading to functioning of the whole water cycle process.
Answer:
Sand,Mud
Explanation:
Sugar and salt are examples of soluble substances. Substances that do not dissolve in water are called insoluble. Sand and flour are examples of insoluble substances.
Gravity is a non-contact force.
Answer:
Diameter of wire B is 2 times the diameter of wire A
Explanation:
We have given two wire A and B
They are made up of same material and length of both the wire is sane
So 
Let the resistivity of both the wire is 
It is given that wire A has 4 times the resistance as wire B
So 
So 
( As )
So diameter of wire B is 2 times the diameter of wire A
I believe the answer for 1) is
PEgrav = mass • g • height
PEgrav = m *• g • h
