It breaks into calcium oxide and carbon di oxide.
<u>Answer:</u> The correct answer is Option 1, Option 2 and Option 3.
<u>Explanation:</u>
A base is defined as the substance which releases hydroxide ion when dissolved in water.
For the given options:
- <u>Option 1:</u>

When ammonia is dissolved in water, it produces ammonium hydroxide which forms a basic solution.

- <u>Option 2:</u>

When sodium oxide is dissolved in water, it produces ammonium hydroxide which forms a basic solution.

- <u>Option 3:</u>

When lithium hydroxide is dissolved in water, it produces aqueous lithium hydroxide which forms a basic solution.

- <u>Option 4:</u>

When phosphorus pentoxide is dissolved in water, it produces phosphoric acid which forms an acidic solution.

Hence, the correct answer is Option 1, Option 2 and Option 3.
Answer: enzymes.
Explanation:
Microbial products are products derived from microorganisms. They may be primary or secondary metabolites. They are known to be environment friendly since they have biological origin. They are often degraded by enzymes which are also biological molecules. Degradation of materials using enzymes typically generates nontoxic products.