× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
5
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
Home Q & A Board Science-Related Homework Help Physics Astronomy
New Topic  
Atir Atir
wrote...
Go to Answer
Posts: 502
Rep: 0 0
6 years ago
Radio telescopes have poorer angular resolution than optical telescopes because radio waves have a much longer wavelength than optical waves.
 
  Indicate whether the statement is true or false

Question 2

For which of these forms of life is it hardest to apply present criteria for life, based on its behavior when isolated?
 
  A) a bacterial spore
  B) a plant seed
  C) a virus
  D) a fungus spore
  E) a slime mold

Question 3

The vast flood deposits support the hypothesis that Mars once had much running water. Assuming that Mars did have water once, what happened to it?
 
  What will be an ideal response?

Question 4

Which direction do a comet's dust and plasma tails point?
 
  A) straight behind the comet in its orbit
  B) generally away from the Sun
  C) perpendicular to the ecliptic plane
  D) always almost due north

Question 5

Two pairs of sunspots appear similar, but if one photo was made in 1990, and the next photo was in 2002, we would note what difference?
 
  What will be an ideal response?
Read 54 times
3 Replies
Replies
Answer verified by a subject expert
npandelos1npandelos1
wrote...
#1
Posts: 316
Rep: 2 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

Atir Author
wrote...
#2
6 years ago
Extremely helpful
wrote...
#3
6 years ago
Cool, thanks for the positive feedback
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1179 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 513
  
 6916
  
 240