What type of galaxy has only old stars, little to no gas and dust, and no star formation?
A. spiral galaxies
B. irregular galaxies
C. elliptical galaxies
D. All types of galaxies share these features.
Answer: C
Environmental & Atmospheric Sciences
You might also like to view...
Malaria cannot be transmitted by blood transfusions or by sharing needles
Indicate whether the statement is true or false
Environmental & Atmospheric Sciences
Which of the following is not an effect of friction?
A) slows airflow B) increases the Coriolis effect C) causes airflow to cross isobars rather than run parallel to them D) none of the above
Environmental & Atmospheric Sciences
The most well-developed sense in marine birds is ________.
A. smell B. touch C. sight D. taste E. hearing
Environmental & Atmospheric Sciences
The ecological efficiency of herbivores and carnivores is estimated by most authorities to be roughly ____
a. 1 percent b. 10 percent c. 30 percent d. 60 percent e. 90 percent
Environmental & Atmospheric Sciences