Answer:
CH4
Explanation:
Combining hydrogen and carbon produces a group of organic compounds called hydrocarbons. Depending on the specific molecular formula, there can be many different types of hydrocarbons, such as the fuels propane and octane. The simplest hydrocarbon is methane, which has the chemical formula CH4.
In general for everyone, these are the most likely group of people i've chosen mature; grandparents(grandma,granddad), parents (mom,dad), your teacher.
Answer:
[B] A middle ear infection.
Explanation:
An example of an acute disease is a middle ear infection. Acute diseases include broken bones, viruses like the flu and rotavirus, and infections like pink eye and urinary tract infections. Sometimes acute diseases can be severe and require emergency medical attention.
[RevyBreeze]
Answer:
C, using a natural predator that kills pests.
Explanation:
