I believe the answer to your question is C
A drought is an event where there are shortages of water supply. The water in question can be atmospheric, surface water or ground water. A drought can last for months or years, but sometimes for a few weeks. It can cause big problems and crises in a lot of countries.
Desertification is the process by which fertile land becomes desert typically as a result of drought, deforestation, or inappropriate agriculture. Desertification is a big problem in a lot of places, because deserts are getting bigger and people are loosing good land that can be used because of it.
Answer:
The word underlined in the sentence is best defined as activity.
<em>"Each economic </em><em><u>activity</u></em><em> play the vital role in the nation's economy".</em>
Explanation:
An economic sector is one in which a good is produced and exchanged for another good or for money, generating the flow and distribution of wealth in a given population.
Economic sectors involve each of the activities that generate goods and services to meet the needs of a population and generate wealth, being the main activities -or sectors- of the economy:
- Farming / fishing.
- Agriculture.
- Industry and commerce.
- Communications.
- Diverse services provided by qualified or unqualified personnel.
Each one of the economic activities that are carried out in a country contribute to cover the requirements of the population, at the same time that they constitute the economy of this country.
True; with improvements in technology/manufacturing, acid rain became a major problem
The answer is b constant and unique
