Please tell what is fact or what is opinion

1. Cardinals are pretty.

Opinion

2. Birds help plants grow.

Fact

3. Many birds migrate in the winter.

Fact

4. Woodpeckers are annoying.

Opinion

5. Female birds lay eggs.

Fact

6. Birds sing beautifully.

Opinion

7. Birds have hollow bones.

Fact

8. Feathers help keep birds warm

Fact

9. Everyone should have a pet bird.

Opinion

10. All birds need food and water.

Fact

A fact is a statement that is true and a opinion is a statement someone thinks about it.

velocity and height

sand 60

clay 10

silt 30

sandy loam should be dominated by the sand. as the amount of sand increased, the amount of slit needed to anchor the plants' roots to the sand will also be increased. even though the amount is very little, 10% part of clay is still necessary for proper oxidation.