If you have choices, it would be really helpful if you'd include them with your question, but I'd say
More than half of the forests in the Czech Republic have been destroyed by pollution.
It’s B (I’m pretty sure it’s B if it’s not then I’m sorry)
It must be at least 4 bricks high because 6*4=24
2 bricks in each of the 4 levels of bricks (12*2= 24) (24*1=24)
4 bricks up*2 bricks wide= 8 bricks
The Rhine River<span> begins at the Rheinwaldhorn Glacier in the Swiss Alps and flows north and east approximately 820 metres. This </span>river<span> is arguably the </span>most important<span>waterway in </span>Germany<span> and is linked by canals to other </span>major rivers<span> in Western Europe.</span>