Question

1. true or false: without the sun, there would be a high concentration of carbon dioxide.
2. how many rogue planets are estimated to be in the milky way?

Explanation:

Step1: Analyze the first question about carbon - dioxide

Photosynthesis, which is powered by sunlight, uses carbon dioxide and water to produce oxygen and glucose. Without the sun, photosynthesis would stop. Plants would not be able to consume carbon dioxide, and through respiration of living organisms and natural processes like decomposition, the amount of carbon dioxide in the atmosphere would increase.

Step2: Analyze the second question about rogue planets

Current scientific estimates suggest that there could be billions of rogue planets in the Milky Way. These are planets that have been ejected from their planetary systems or formed in isolation. They do not orbit a star.

Answer:

1. True
2. Billions