“Did you know that harnesses are far more secure than dog collars? Dog collars are in fact dangerous in some cases, causing harm to dogs necks, and dogs can slip out!”
        
                    
             
        
        
        
Cause they both want to be the leader of the team easy as that
        
                    
             
        
        
        
Answer:
Wiki
- They can collaborate with elected officials to revise the plans.
- They can share their ideas about the redevelopment plans. 
Podcast
- They can listen to the redevelopment plan at their convenience.
- They can download the plans to their own electronic devices.
Explanation:
The above are correct.
Wiki is known to be collaborative tool which allows for contribution and modification from other people. It helps to develop, promote and facilitate community building.  It's aim is to create an avenue where individuals can collaborate and share knowledge on a particular issue.
Podcast is known to be a type of audio broadcasting over the web. It gives people the opportunity to listen  on the go and also the opportunity to download and listen at their convenience. 
The tiles were correctly place.
 
        
             
        
        
        
The answer is: There is no error.
Complex sentences consist of a subordinate or dependent clause, which is introduced by a subordinating conjunction like <em>even though</em>, and an independent clause, which can stand on its own. They can be separated by a comma. 
In the example sentence, the subordinate clause is:
Even though I had no previous experience,
Finally, the independent clause is:
I enjoyed painting the living room with my friends. 
The rest of the alternatives are incorrect because the clauses are separated or do not express the same meaning as the original sentence.