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

Author Question: Approximately how long ago did the dinosaurs suddenly become extinct? A) 6 million years ago B) ... (Read 76 times)

genevieve1028

  • Hero Member
  • *****
  • Posts: 601
on: Jul 27, 2018
Approximately how long ago did the dinosaurs suddenly become extinct?
 
  A) 6 million years ago
  B) 65 million years ago
  C) 245 million years ago
  D) 10,000 years ago

Question 2

The case of Venus tells us that which of the following is a critical factor in determining surface habitability?
 
  A) planetary size
  B) levels of geological activity
  C) distance from the Sun
  D) the presence of a magnetic field


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

heinisk01

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

C


genevieve1028

  • Member
  • Posts: 601
Reply 2 on: Jul 27, 2018
Gracias!

dyrone

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

Did you know?

Everyone has one nostril that is larger than the other.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Approximately 1 pound (0.45 kg) of ground elk meat formed into patties; note the relatively small fa Approximately 1 pound (0.45 kg) of ground elk meat formed into patties; note the relatively small fa
Extinct North American Megafauna Extinct North American Megafauna
History of the number of observed sunspots during the last 250 years, which shows the ~11-year solar History of the number of observed sunspots during the last 250 years, which shows the ~11-year solar
fMRI Machine It is not until after toddlerhood that most children can lie still long enough to have fMRI Machine It is not until after toddlerhood that most children can lie still long enough to have
The air flowing into the engine can be directed through long or short runners for best performance ... The air flowing into the engine can be directed through long or short runners for best performance ...
A pedigree for albinism collected in the early years of the twentieth century by Charles Davenport, A pedigree for albinism collected in the early years of the twentieth century by Charles Davenport,
Video: Muscular Dystrophy

For a complete list of videos, visit our video library