In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.
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Question: Question: Reid notices no change in the weather and temperature from 100 years ago. This likely was caused by _____ greenhouse gas levels. 
 Answer: decreased

Answer: As greenhouse gases increase, changes will be more extreme.


Question: Question: Mike was wiring up a new circuit to test it out. He observed that the more resistors he added to the circuit. the overall resistance level 
 Answer: Increased

Answer: Increasing the number of resistors in a series circuit increases the overall resistance of the circuit.


Question: Question: If there are very few wolves the deer population will 
 Answer: increase

Answer:
An increase in predators, the emergence of a new disease, or the loss of habitat are just three possible problems that will decrease a population.