Can someone help me these questions are based off wetlands write descriptively and long for each question

1. In what ways can we tell plants apart?

2. What evidence did you see that animals are found in and around freshwater wetlands?

3. Why are wetlands important?

4. Was there evidence of climate change effecting wetlands?

May someone me with these science questions

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)

To apply in a gold the individual gold atoms are united to each other by means of a metallic bond. how would you use the gold block to determine the atomic radius of a gold atom?