Groundwater is water that exists in the pore spaces and fractures in rock and sediment beneath the Earth's surface. Which of the following statements is correct in this context?

1.    Groundwater makes up about 1% of the water on Earth but makes up about 35 times the amount of water in lakes and streams.

2.    Groundwater is a primary agent of chemical weathering and is responsible for the formation of caves and sinkholes.

Choose the correct option: