I'm pretty sure the answer is D but it's been a while since I've studied this. 95% sure it's D though :)
Currently, the Angolan government is a Presidential republic. this is when the head of the government is the president the executive body in that branch of government.
It was divided because of the tensons between the allies and soviets
Answer:
d) Principle of Conservation of Matter
Explanation:
Principle of Conservation of Matter -
According to the law of conservation of matter, matter is the substance which ac not be created and even it can not be destroyed , hence we need to have the same number of atoms before and after the reaction constant during a chemical change or process of chemical as were number of atoms and type of atoms present before the chemical change .
Hence , from the options , the correct answer is the Principle of Conservation of Matter .