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Triss [41]
3 years ago
10

What are primary and secondary economic activities and how are they different

Geography
1 answer:
Alex787 [66]3 years ago
3 0

Answer:

They are different

Explanation:

This is because one is primary and the other is secondary, there for pretty basic they're obviously going to be different

*sorry not a BIG eXpLaNaTiOn*

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Are tsunamis caused by the weather? Why or why not?
Fofino [41]

Answer: Most tsunamis are caused by large earthquakes below or near the ocean floor, but tsunamis can also be caused by landslides, volcanic activity, certain types of weather and near earth objects (e.g., asteroids, comets). Not all earthquakes cause tsunamis.

Explanation:

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3 years ago
10. What continent is located at 30° N, 105º E?<br> Answer:
enyata [817]

Answer:

Hey!

The continent found on 30°N, 105ºE is ASIA

Explanation:

Its in the country of CHINA...which is in SE ASIA or ASIA as a whole!

HOPE THIS HELPS!!

7 0
3 years ago
Which term refers to the direction a current is flowing?
deff fn [24]

Answer:

The correct answer is<em><u> D. Set</u></em>

Explanation:

In contrast, <em><u>direct current</u></em> (DC) refers to a system in which the movement of electric charge in only one direction (sometimes called unidirectional flow). Direct current is produced by sources such as batteries, thermocouples, solar cells, and commutator -type electric machines of the dynamo type.

8 0
3 years ago
Answer the following:
Black_prince [1.1K]

1. A) carnivore; third

The trophic levels are divided by the manner in which the energy is produced and consumed among the living organisms. The first trophic level is occupied by the autotrophs, which are the organisms that are able to produce their own food. The second trophic level is occupied by the organisms that feed upon the autotrophs, thus they are the herbivores, as well as the omnivores in partial sense. In this case we will have the ants at the second level. The third trophic level is reserved for the organisms that feed upon the organisms of the second trophic level, thus they are predators. In this case, we will have the wasp in the third trophic level.

2. B) consumption; 20

If there are herbivores and plants, the plants account for 1,000 kg in biomass, and the herbivores eat 200 kg of them, then the consumption is 20% of the total biomass. This kind of a scenario is able to support the whole population of herbivores without any problem, as there is much more food than they need. It will only become a problem if the population of herbivores starts to grow exponentially, and they start to consume all of the food and even require more, the population will collapse.

3. C) N20

The processes and nitrification and denitrification are very common, both in nature, and because of the human activity. The human activity has actually increased this process significantly. The main product of the nitrification-denitrification is the N2O. It is a vital product for the nitrogen cycle, and it is one that is increasing the atmospheric temperature, thus too much of it is not of best interest for anyone.

5 0
3 years ago
¿Para qué se firmó el Tratado Antártico?.
RoseWind [281]

Answer:

Para que ningún acto o actividad que se lleve a cabo mientras el tratado se halle en vigencia constituirá fundamento para hacer valer, apoyar o negar una reclamación de soberanía territorial en la Antártida, ni para crear derechos de soberanía en esa región.

Explanation:

4 0
4 years ago
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