Question

What is the main difference between the two sections of "Trip to Mars Could Damage Astronauts’ Brains"?

a) The first section describes existing astronaut missions; the second expands on the topic to discuss future missions.
b) The first section interviews a brain scientist; the second interviews a scientist who works with mice.
c) The first section deals with experiments on mice; the second explains how people may be affected.
d) The first section explains the origins of cosmic rays; the second describes in detail how to block them.

Answer 1

The main difference between the two sections of the article is that the first section describes existing astronaut missions, while the second section expands on the topic to discuss future missions.

Step-by-step explanation:

The main difference between the two sections of 'Trip to Mars Could Damage Astronauts' Brains' is that:

a) The first section describes existing astronaut missions; the second expands on the topic to discuss future missions.

The first section provides information on the current situation and challenges faced by astronauts due to radiation exposure. It describes the limitations on the amount of radiation astronauts can be exposed to. The second section builds upon this information and discusses future missions to Mars and the need to protect astronauts from high-energy solar radiation.