$\text{1. Keep Scotland Beautiful is an environmental organisation working to make Scotland cleaner, greener and more sustainable.}$

$\text{2. National Spring Clean is a campaign which encourages people to get together to pick up litter.}$

$\text{3. Scotland faces a environmental problem called litter problem.}$

$\text{4. In"National Spring Clean 2011", almost 100,000 volunteers participated in 1,538 clean-up events throughout Scotland.}$

1. What is 'Keep Scotland Beautiful'?

- Keep Scotland Beautiful an environmental organisation working to make Scotland cleaner, greener, and more sustainable.

2. What is 'National Spring Clean'?

- National Spring Clean is a camping encourages people to get together to pick up litter. 

3. What is the environmental problem that Scotland faces?

- Scotland faces is an environmental called a litter problem.

4. What happened in 'National Spring Clean 2011'?

- In National Spring Clean 2011, almost 100,000 volunteers participated in 1,538 clean-up events throughout Scotland.