This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Thomas Edison's contribution to the search for cheap and efficient indoor lighting was the a. ... (Read 23 times)

ARLKQ

  • Hero Member
  • *****
  • Posts: 571
on: Sep 12, 2019

Question 1

The mound builder societies were characterized by
 
  a. hunting and gathering.
  b. power struggles among rival groups.
  c. small settlements.
  d. large-scale trade and commerce.

Question 2

Thomas Edison's contribution to the search for cheap and efficient indoor lighting was the
 
  a. fluorescent lamp.
  b. arc light.
  c. incandescent bulb.
  d. gaseous-discharge bulb.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

triiciiaa

  • Sr. Member
  • ****
  • Posts: 349
Reply #1 on: Sep 12, 2019

Answer 1

ANSWER: d

Answer 2

c


ARLKQ

  • Member
  • Posts: 571
Reply 2 on: Sep 12, 2019
Great answer, keep it coming :)

Hdosisshsbshs

  • Member
  • Posts: 315
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Saint Thomas Aquinas (1225–1274). Aquinas was a Christian theologian who sought to synthesize ... Saint Thomas Aquinas (1225–1274). Aquinas was a Christian theologian who sought to synthesize ...
Thomas Hobbes (1588–1679) Thomas Hobbes (1588–1679)
With a three-way catalytic converter, emission control is most efficient with an air–fuel ratio ... With a three-way catalytic converter, emission control is most efficient with an air–fuel ratio ...
Efficient Allocation of Labor between Sectors Efficient Allocation of Labor between Sectors
Singapore’s Changi Airport now holds the world’s tallest indoor waterfall Singapore’s Changi Airport now holds the world’s tallest indoor waterfall
Blueberry bees (Osmia ribifloris) are efficient pollinators of a variety of plants, including this b Blueberry bees (Osmia ribifloris) are efficient pollinators of a variety of plants, including this b
Video: How do the different types of chromatography work? (No Audio)

For a complete list of videos, visit our video library