As responsible citizens, people should follow certain practices that lower the emission of greenhouse gases. they should also avoid activities that raise the levels of greenhouse gases. sort the activities into those people should do and those they should avoid.

leave appliances turned on after using them.

take a bus instead of driving a car.

recycle used items.

boil a full kettle of water to make one cup of tea.

use solar energy to heat water.

compost kitchen waste.

Activities people should do include:
1. Recycle used items
2. Use solar energy to heat water
3.Compost kitchen wastes.
4.Take a bus instead of driving a car.
These activities do not involve burning, so they avoid adding to the level of green house gases already in existence.
Activities people should avoid include:
1.leaving appliances turned on after using them
2. Boiling a full kettle of water to make one cup of tea
These activities add to the level of greenhouse gases that are already in existence.

2hydrogen and 1 covalent