Answer:
D
Explanation:
it goes past the decimal three places
Explanation:
1 Cal of energy is equivalent to 4.184 Joules.
A.
770Cal of energy = 3221.680 joules
Therefore, 780kCal of energy = 3221680 Joules.
B.
3200000 Joules (in 2 s.f).
C.
I000 joules = 1 kJoule
3221680 joules = 3221.689 kJoules.
D.
3200 kJ (in 2 s.f).
Answer:
Both apply to a certain region
Choice C is correct
Explanation:
Weather refers to the atmospheric conditions of a given place over a short period of time, like a day.
On the other hand, Climate refers to the average climatic conditions of a particular region measured over a long period of time.
Both weather and climate apply to a certain region.
Answer:
Metamorphic rock
Explanation:
metamorphic rocks do not get hot enough to melt they just get denser if they did they would become igneous rocks.
Answer: An Element
Explanation:
An element is a substance that cannot be split into smaller substance. It is made up of one kind of atom and can exist either as molecules (e.g nitogen) or an atom (e.g argon).