1 There are too many cars in some cities, and this causes air pollution

2 She is crazy about taking photographs of beautiful landscapes and scenery 

3 The river water is dirty enough to pose threat to aquatic life

1 I enjoy going to the park for a picnic for it allows me to relax in nature

2 We should go to this village in order to explore traditional ways of life

3 If we throw trash on the ground, the environment will get dirty

1.How much time do you spend playing games on weekends.

2.whose family owns the largest field for planting crops in the rural area.

1.avoid touching as they can burn hot surface you.

2.Are bicycles popular of transport a mode in the coutryside?

cvs

vvvv

xxx

a)4:9+1:4=16:36+9:36=25:36

b)1:3.(-4):5+1:3.(-1):5+2023⁰

^{1:3.(-4):5+1:3.(-1):5+1}

^{1:3.[(-4):5+(-1):5]+1}

^1:3+(-1)+1

^1:3+0

^1:3

c)1:5-[1:4-(1-1:2)²]

1:5-[1:4-(1:2)²]

1:5-[1:4-1:4]

1:5-0

1:5