Imprimir Froggy Jumps: Bio-fertilizers (soil - seeds

1. What is a fertilizer?

A

These are substances that are only produced in a laboratory

B

Substances used as feed for animals

C

They are substances rich in plant nutrients

2. How are fertilisers classified (according to their origin)?

A

Chemical and organic fertilizers

B

Chemical, organic and bio-fertilizers

C

Organic fertilizer

3. biofertilizers cause any soil damage

A

yes

B

no

C

I don´t care

4. Main nutrients in the soil

A

F, O, K, Au

B

K, N, P

C

He, N, Al

5. effects of fertilisers on the soil

A

dead

B

There are none

C

erosion, desertification, eutrophication

6. the second most produced seed in Mexico

A

Marijuana

B

Bean

C

Corn

7. what is eutrophication?

A

a conspiracy theory

B

that's not a thing

C

excess of nutrients