Option 1: Adequate light is not necessary for seed germination. While light is important for the growth and development of plants, it is not a requirement for the initial germination of a seed. Seeds are capable of germinating in darkness, as they rely on stored energy and the processes of cellular respiration to begin sprouting. Light becomes important once the seedling emerges from the ground and starts photosynthesizing to produce its own energy.

Option 2: Supply of oxygen is essential for seed germination. Seeds respire, converting stored energy into usable forms for growth. Without a sufficient oxygen supply, cellular respiration cannot occur, and the seed will not germinate.

Option 3: Suitable moisture is necessary for seed germination. Seeds require water to soften their outer coat and activate enzymes that break down stored nutrients. Water also provides the necessary environment for cellular processes to occur.

Option 4: Suitable temperature is important for seed germination. Different plant species have specific temperature requirements for germination. Seeds need a favorable temperature to activate the enzymes responsible for breaking dormancy and initiating growth.

Hence, the correct answer is Option 1, adequate light is not required for seed germination.