It's impossible to give a definitive answer to how much water and sunlight a plant needs because it depends entirely on the specific plant species. Here's a breakdown:

Water:

* Type of plant: Succulents need very little water, while water lilies need lots.

* Climate: Plants in arid climates need less water than those in humid climates.

* Soil type: Well-draining soil holds less water than clay soil.

* Pot size: Smaller pots dry out faster than larger pots.

* Season: Plants need more water during their growing season and less during dormancy.

Sunlight:

* Type of plant: Sun-loving plants like tomatoes need full sun, while shade-loving plants like ferns prefer filtered light.

* Location: Plants in the tropics receive more sunlight than those in temperate zones.

* Season: Plants need more sunlight during the summer months.

* Exposure: Plants on the south side of a house will receive more sunlight than those on the north side.

Here's how to figure out what your plant needs:

1. Identify your plant: Research the specific needs of your plant species.

2. Observe the plant: Look for signs of overwatering (yellowing leaves, wilting) or underwatering (dry, crispy leaves).

3. Feel the soil: The top inch of soil should be dry before you water.

4. Adjust as needed: Over time, you'll learn what your plant needs based on its response.

General tips:

* Don't overwater: It's better to underwater than overwater.

* Water deeply: Water thoroughly until it drains from the drainage holes.

* Provide the right amount of sunlight: Place your plant in a location that meets its sunlight needs.

* Pay attention to your plant: Observe for changes in its appearance and adjust your watering and light accordingly.

Remember: Each plant is unique, so be patient and observe its individual needs.