How are the building blocks of molecules like bricks

Which of the following represents the chemical reaction of hydrazine and hydrogen peroxide to produce nitrogen and water? a. nitrogen + hydrogen peroxide → hydrazine + water b. nitrogen + water → hydrazine + hydrogen peroxide c. hydrazine + hydrogen peroxide → nitrogen + water d. water + hydrogen peroxide → nitrogen + hydrazine

The picture shows a fishing technique called trawling. how might trawling affect marine biodiversity

What is the approximate time of death of the body temperature is 29.4 degrees celsius