Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

9.1

People and the Environment

QuestionAnswer
mining can have a _________ impact on habitats when it pollutes soil and water. negative
The ___________ increase in human population happened in the last few centuries. greatest
The human population is about 6.7 ___________. billion
Carrying capacity is the _________ number of individuals of a given species that Earths resources can support. largest
Improved health care causes the human population to? increase
What year did the human population hit 1 million? 1800
About how long did it take to reach 2 million people? 70 years
What will happen to the resources if the population continues to increase at the rate it is? decrease
what factor mainly helped the human population increase in the last few centuries? health care
Will a species decrease or increase if it passes its carrying capacity? decrease
An carrying capacity is the number of a species living in an area, TRUE OR FALSE? false
An population is how much one are can sustain one species, TRUE OR FALSE? false
A population explosion an major sudden increase in population, TRUE OR FALSE? true
Created by: edmonkal5547
Popular Earth Science sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards