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

Author Question: Volcanic bombs have a twisted, streamlined shape, which indicates that they ____. A)cooled quickly ... (Read 56 times)

ericka1

  • Hero Member
  • *****
  • Posts: 544
on: Jul 13, 2018
Volcanic bombs have a twisted, streamlined shape, which indicates that they ____.
 A)cooled quickly underwater
 B)were formed from ropy, viscous mafic flows
 C)were erupted as globs of magma that cooled and solidified during their flight through the air
 D)have high amounts of dissolved gases and low amounts of sodium
 E)were erupted gently from a shield volcano and cooled as they moved downslope

Question 2

What two processes, which began during the Archean, can account for the introduction of free oxygen into the atmosphere?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lolol

  • Sr. Member
  • ****
  • Posts: 330
Reply #1 on: Jul 13, 2018
Answer to Question 1

C

Answer to Question 2

The two processes are photochemical dissociation and photosynthesis.


ericka1

  • Member
  • Posts: 544
Reply 2 on: Jul 13, 2018
:D TYSM

Dominic

  • Member
  • Posts: 328
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Did you know?

The average adult has about 21 square feet of skin.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Shape changes in molecules Shape changes in molecules
The shape of flapper sundresses minimized hips and breasts, and the gossamer thinness of the fabric The shape of flapper sundresses minimized hips and breasts, and the gossamer thinness of the fabric
A typical bus system showing module CAN communications and twisted pairs of wire. A typical bus system showing module CAN communications and twisted pairs of wire.
Tectonic Disasters: Volcanic Eruptions Tectonic Disasters: Volcanic Eruptions
Crystal Shape, or Habit: Pyrite Crystal Shape, or Habit: Pyrite
Look at Table 4.2.2. Consumers learn that the rubber ducks wear out batteries quickly. As a ... Look at Table 4.2.2. Consumers learn that the rubber ducks wear out batteries quickly. As a ...
Video: Uterine (menstrual) cycle - phases

For a complete list of videos, visit our video library