« previous next »

Author Question: What mountain building event, which occurred about 35-55 million years ago, created the front ranges ... (Read 92 times)

Lisaclaire

  • Hero Member
  • *****
  • Posts: 569
on: Aug 7, 2018
What mountain building event, which occurred about 35-55 million years ago, created the front ranges and foothills of the Rocky Mountains?
 
  A) The Laramide Orogeny
  B) The Columbia Orogeny
  C) The Gondwana Orogeny
  D) The Silurian Orogeny

Question 2

The formation of the Rocky Mountains began about 200 million years ago with the collision of the North American Plate and that other plate?
 
  A) The South American Plate
  B) The Pacific Plate
  C) The Juan de Fuca Plate
  D) The Caribbean Plate


shoemake

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Aug 7, 2018
Answer to Question 1

A

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

The skullcap from Trinil, Java is the type specimen for H. erectus and is about 900,000 years old. The skullcap from Trinil, Java is the type specimen for H. erectus and is about 900,000 years old.
School age (late childhood): 6–12 years, or to puberty. School age (late childhood): 6–12 years, or to puberty.
The age-related increase in spirituality is different for two cohorts born seven years apart. The ... The age-related increase in spirituality is different for two cohorts born seven years apart. The ...
Always connect an exhaust hose to the tailpipe of a vehicle to be run inside a building. Always connect an exhaust hose to the tailpipe of a vehicle to be run inside a building.
A $50 000 bond bearing interest at 6.5% bond payable semi-annually matures in 10 years. If it ... A $50 000 bond bearing interest at 6.5% bond payable semi-annually matures in 10 years. If it ...
A man put aside $5710.00 at the end of every 3 months for seven years. How much will he have ... A man put aside $5710.00 at the end of every 3 months for seven years. How much will he have ...
Video: Protein catabolism (Krebs cycle) and Protein anabolism (protein synthesis)

For a complete list of videos, visit our video library