Airborne fragments<span> of lava, called tephra, are ejected from a single vent. The lava cools rapidly and builds up around the vent, forming a crater at the summit. Cinder cone volcanoes are fairly small, generally only about 300 feet (91 meters) tall and not rising more than 1,200 feet (366 meters).</span>
The molten material that comes out volcanoes is magma.
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.
1 = Southern Europe
2= Western Europe
3 = scandavia
4 = Eastern Russia
Answer:
b. cause gases and particulate matter to remain trapped near the ground.
Explanation:
Temperature inversion simply means warm air been trapped in the atmosphere within a colder layers. it causes gases ,dust, dew and particulate matter to remain trapped near the ground thereby reducing visibility.
