Trees are removed from a wooded hillside to make farmland. What environmental problem is shown?

After trees are cleared, fewer birds remain. Which loss could explain this?

Jeepneys release exhaust smoke along a busy road. What environmental problem can this cause?

What environmental problem occurs when untreated sewage enters a river?

Which observation suggests plant damage after used motor oil spills onto garden soil?

Which lunch habit prevents edible food from becoming waste?

Food rotting in a landfill can release gases that contribute to climate change.

Dry leaves and vegetable peels are collected for composting. What property makes these materials suitable?

An ordinary plastic bottle and a banana peel decompose at the same rate under the same outdoor conditions.

Why should residents collect plastic wrappers from creek banks before heavy rain?

Which note from Ben's creek visit records an observation rather than an explanation?

Pupils want to compare residents' views about garbage collection. Which survey approach makes their answers easier to compare?

A survey response differs from Mina's prediction. How should she include it in the results?

These tally marks record households reporting scattered garbage. How many households reported it?

Use the class survey graph. What problem did the most pupils report?

A cleanup sorts glass and plastic separately. How should pupils sort an empty glass bottle with a removable plastic cap?

Two groups suggest different cleanup plans. Which response shows open-mindedness before choosing a plan?

Before expanding a one-street bin trial, what result should pupils use to judge whether it reduced litter?

Which message links survey evidence to a suitable request for help from barangay officials?

What belongs in the procedure section of a community cleanup plan?