« previous next »

Author Question: If the population of a country doubles every 25 years, a 1980 population of 10 million will reach 80 ... (Read 72 times)

CharlieWard

  • Hero Member
  • *****
  • Posts: 578
on: Jul 28, 2018
If the population of a country doubles every 25 years, a 1980 population of 10 million will reach 80 million in the year
 
  a. 2005.
  b. 2030.
  c. 2055.
  d. 2080.
  e. 2105.

Question 2

Suppose that we allowed each person 1000 m3 of living space in a large building, with ceiling height 3 m.
 
  To the nearest order of magnitude, how many 1000 m high
  buildings would have to be built to house the entire population of 8.5 x 1014 people on the
  energy-limited Earth if each building's base were 100 km on a side?
  a. 101
  b. 102
  c. 105
  d. 108
  e. 1013


Ksh22

  • Sr. Member
  • ****
  • Posts: 297
Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

CharlieWard

  • Hero Member
  • *****
  • Posts: 578
Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


Ksh22

  • Sr. Member
  • ****
  • Posts: 297
Reply #3 on: Jul 28, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Details of plant population biology from repeat photography: (a) saguaro cactus in MacDougal Crater, Details of plant population biology from repeat photography: (a) saguaro cactus in MacDougal Crater,
The Parietal Reach Region The Parietal Reach Region
Population Losses in the South, 1920–1930 Population Losses in the South, 1920–1930
Population Growth Population Growth
The level of future emissions is closely linked to the rate of population growth The level of future emissions is closely linked to the rate of population growth
Population growth Population growth
Video: Methods that regulate pH

For a complete list of videos, visit our video library