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

Author Question: Observations vs. Explanations. Which of the following statements is an explanation? A) Hydrogen ... (Read 28 times)

cool

  • Hero Member
  • *****
  • Posts: 570
on: Jul 27, 2018
Observations vs. Explanations. Which of the following statements is an explanation?
 
  A) Hydrogen and helium are important constituents of stars.
  B) The orderly orbits of planets arose from their formation in a rotating cloud of gas.
  C) All planets orbit the Sun in the same direction and nearly the same plane.
  D) The farther a galaxy is, the faster it is moving away from us.
  E) The inner planets of the solar system are rocky and the outer planets are gas giants.

Question 2

A maximum in solar activity should next occur about
 
  A) 2020. B) 2017. C) 2019. D) 2023. E) 2027.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cadimas

  • Sr. Member
  • ****
  • Posts: 362
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

D


cool

  • Member
  • Posts: 570
Reply 2 on: Jul 27, 2018
Wow, this really help

Dnite

  • Member
  • Posts: 297
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Examples of hydrogen bonds Examples of hydrogen bonds
Directionality of the hydrogen bond Directionality of the hydrogen bond
Nanotechnology in Fuel Cell Schematic of a hydrogen gas tank for a car Nanotechnology in Fuel Cell Schematic of a hydrogen gas tank for a car
Examples of Mission Statements Examples of Mission Statements
Hydrogen-bond donors and acceptors in water Hydrogen-bond donors and acceptors in water
Hydrogen bonding patterns for the a- and 310 helices Hydrogen bonding patterns for the a- and 310 helices
Video: Morphology of a tomato plant

For a complete list of videos, visit our video library