Q: The presence of what makes soil hold together more tightly and enables it to hold more water?


Read this paragraph and choose the correct option from the provided answers:

Soils with lots of very small spaces are water-holding soils. When clay is present in a soil, the soil holds together more tightly. Clay-rich soil can hold more water.

 Choices:

- sand

- salt

- glass

- clay


A:
clay