Sand or gravel that naturally forms near the Earth's surface is known as aggregate. Option "A" is the correct option among all the options given in the question. Practically aggregate has several type of meanings. In respect to the question given the meaning of aggregate is the combination of several items that are together known as aggregate.
The answer to your question is,
Solar wind enters Earth’s atmosphere, and particles interact with ions.
-Mabel <3
Poverty is a state of life, affecting all of humanity. Poverty is most commonly defined by economic standards, based on income levels and access to basic human necessities, such as food, water, and shelter. Poverty is often described with a scale, ranging from extreme to moderate levels. Its really hard to be poor and living on be streets because you don't what your gonna eat the next day and where your gonna sleep.
The correct answer is - c. command.
North Korea is a country where the government is controlling everything in the country, natural resources, media, production facilities, agricultural land...
The country is functioning on the basis and ideologies of the communism since it was formed, and it seems that it will stay that way for the foreseeable future.
Since the government is controlling the economy, and it is in the way of self-sustainability, so the economy is of the command type.