Which is a characteristic of a major life change? a natural disaster an environmental issue an everyday problem a new situation

Hi!

Let's go through all of the options.

A natural disaster: Notice how the phrase starts with natural. This is something that you cannot control. Thus, this isn't the answer.

An environmental issue: Don't take my word for it, but I feel like this isn't the answer either because you can't really control your environment.

An everyday problem: This definitely isn't the answer because it says the word everyday.

A new situation: I feel like this is the answer because it says the word new. A new situation is a major life change.

answer: proteins

explanation: complement is   system of circulate in the blood in a inactive form

i believe is what you're looking for?

explanation:

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