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

Author Question: Why might the presence of a giant planet be both good and bad for life on a terrestrial planet in ... (Read 161 times)

xclash

  • Hero Member
  • *****
  • Posts: 681
on: Jul 27, 2018
Why might the presence of a giant planet be both good and bad for life on a terrestrial planet in another solar system?
 
  What will be an ideal response?

Question 2

If the distance between us and a star is doubled, its apparent brightness will decrease by a factor of four.
 
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

pocatato

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jul 27, 2018
Answer to Question 1

A giant planet can kick comets out of the inner solar system to an Oort-type cloud through gravitational encounters. This is good because it means that life on the inner planets can evolve without sterilizing giant impacts. A potential bad effect is that if a star does not blow away its surrounding disk of gas and dust soon enough, the giant planet may experience drag and migrate inwards, sweeping any inner planets into the central star. Observations of extrasolar planets appear to be examples of this migration process.

Answer to Question 2

TRUE


xclash

  • Member
  • Posts: 681
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

strudel15

  • Member
  • Posts: 324
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

Evolutionary shift in plant life cycle stage dominance. Evolutionary shift in plant life cycle stage dominance.
Types of obligatory salt and water exchanges in a terrestrial animal. Types of obligatory salt and water exchanges in a terrestrial animal.
Salt glands as an adaptation for marine life. Salt glands as an adaptation for marine life.
A consensus tree of life A consensus tree of life
potatoes as a very good source of vitamin B6 potatoes as a very good source of vitamin B6
Most Canadian seniors rated their health as good to excellent. Most Canadian seniors rated their health as good to excellent.
Video: Natural Selection, Species Isolation and Real World Example

For a complete list of videos, visit our video library