Which of these is a part of the geosphere? (2 points)

Infrared radiations are produced when a changing electric field creates a (3 points)

One student made a science model with a balloon having many spots on it. The balloon was blown up gradually as shown below. What is best demonstrated by this model? (3 points)

Which of these is the best method to measure the distance to a star? (3 points)

Based on an experiment, a cosmologist has proposed a new theory to explain the origin of the universe. The theory will be accepted when (3 points)

Which of these waves travel the fastest? (3 points)

NASA’s space shuttle program in Florida will end in 2011. Which of these statements best describes the outcome of this event on the locations near the space center? (3 points)

Which of these is the most likely reason why the Steady State Theory of origin of the universe has been rejected? (3 points)

The table below shows the initial masses of four stars. Name of Star Star 1 Star 2 Star 3 Star 4 Initial mass of star (in Solar mass) 9 0.9 5 0.3 Which of these stars will stay on the main sequence for the longest time? (3 points)

Which of these models would best represent the Big Bang Theory? (3 points)