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Natalka [10]
3 years ago
9

Describe how our lives would be different if the lightbulb had never been invented.

Biology
1 answer:
Marrrta [24]3 years ago
5 0

Answer:

If the light bulb had never been invented, we would use natural sunlight as light during the day and fire or candles when we cannot see the sun. Since the light of candles is rather dim, most people would also sleep and wake up early, with the sun. The streets would be darker at night, even in urban areas.

Many other inventions that use the light bulb may not have been invented, or would be different. For example, our computer screens and television screens are forms of small light bulbs. Car headlights use light bulbs as well.

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7. The periodic table has changed over time as new elements have been added to it. Which
damaskus [11]

Answer:

it will be the answer B. scientists discover new elenents.

6 0
2 years ago
Suppose the North American plate is moving away from the Eurasian plate at a rate of 2 cm per year. The eastern-most point of No
Archy [21]

The correct answer is - 1,180 km.

North America and Europe move away from one another, though the two plates, the North American and Eurasian are merging together on the other side. Since the rate of moving away is 2 cm per year, and the current distance is 1,184 km between North America and Europe, the distance between them 200,000 years ago was 1,180 km.

To get to the result we only need to multiply the number of years with the annual movement

2 x 200,000 = 400,000

Than divide the result with 100,000, as that is how much cm are in one km

400,000 / 100,000 = 4

And we get 4 km, in this case 4 km less, thus the distance between the two, 200,000 years ago, was 1,180 km.

5 0
3 years ago
Place the cellular respiration pathways in their correct locations.
Rama09 [41]

Answer:

exortion first, capillary action second, electric discharge

5 0
2 years ago
What is the key factor in determining the habitable zone of a planet
FrozenT [24]

Answer:

The key factor in determining the habitable zone of a planet is looking for a Earth-like planet that is able to have water on it's surface, and make sure that it can still give or support life.

Hope this helps!

8 0
3 years ago
Read 2 more answers
What was the main factor driving the migration of people?
vampirchik [111]
Multiple things cause the migration of people.

Economic issues arise:
People run out of jobs and opportunities
(BIGGEST REASON)

Cultural reasons:
Forced intentional migration had occurred in the past on accounts of slavery and political instability

Safety:
More popular reason now is because of war or fights with other countries, the people want to keep their family safe so they move them or move with them

Hope this helped
6 0
3 years ago
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