Answer:

Rice terraces

• On hills and mountains

• like steps
• allows effort in transporting tools?

plain rice field  

• flat surfaces
• on valleys and plains
• more convenient to transport farming tools?

Both  

• Used to grow rice, corn, wheat and other crops
• paddy areas
• can be irrigated

Explanation:

I dont know if which should this two (allows effort in transporting tools and more convenient to transport farming tools) go to so i just picked.