$1)$ List the three human approaches toward the environment and give an example for at least one.

$(4$ marks$)$

$2)$ Identify the human approach that will help to achieve sustainable development. Justify your answer. $(4$ marks$)$

$3)$ Describe the cost$-$benefit analysis procedure to solve environmental issues. $($Your description must include a drawing of the cost$-$benefit table.$)(4$ marks$)$

$4)$ Name the tool to identify acid and base compound with example. $($At least two examples must be given.$)(4$ marks$)$

$5)$ Write the effect of human population on food security. $(4$ marks$)$