Solar Radiation and Energy

During photosynthesis, plants capture solar energy from the Sun and convert it into chemical energy stored in the chemical bonds of glucose molecules. This stored chemical energy can later be used by the plant or by consumers that eat the plant.

The Sun is primarily composed of hydrogen, which makes up about 73% to 74% of its mass (often rounded to 70%). Helium is the second most abundant element, accounting for about 24% to 25% of its mass.

Oceans cover more than 70% of the Earth's surface and contain about 97% of the planet's water. Because of their immense surface area and volume, they provide the vast majority of the water vapor that enters the atmosphere through evaporation.

Plants use solar energy, carbon dioxide, and water to synthesize glucose (food) through photosynthesis. Transpiration is water loss, germination is seed sprouting, and cellular respiration breaks down glucose for energy.

Smelling prey relies on chemical receptors (olfaction) and does not directly utilize energy derived from the Sun. In contrast, cellular repair, growth, and maintaining body warmth are biological processes powered by energy originally captured from the Sun.

Chickens are consumers that feed on grains (producers) that have stored solar energy through photosynthesis. Thus, the energy in chicken meat ultimately originates from the Sun via the food they eat.

Glucose is a carbohydrate that stores energy in its chemical bonds. This stored energy is classified as chemical potential energy, which can be released during cellular respiration.

The Sun is the ultimate source of energy for almost all ecosystems on Earth, driving photosynthesis in plants, which then feeds animals and decomposes into the soil. Water, sugar, and vitamins are essential components of life, but they do not serve as the primary source of all ecosystem energy.

The sentence requires an adverbial clause of time introduced by the conjunction "when" followed by normal subject-verb word order ("the Earth's atmosphere traps"). Option A incorrectly uses question word order ("does... trap"), and Option C is a question structure that does not fit a declarative subordinate clause.

The sun is the ultimate source of energy for almost all ecosystems on Earth. Producers capture solar energy through photosynthesis, which is then passed along the food chain to consumers and decomposers.

Sustainability refers to the ability to maintain or continue a process or resource use over the long term without depleting natural resources or harming the environment. Solar energy is sustainable because the sun will continue to shine for billions of years, unlike fossil fuels which are finite.

Solar power is the conversion of energy from sunlight into electricity, either directly using photovoltaics or indirectly using concentrated solar power. The word solar is derived from the Latin word for Sun.

Energy from the sun travels through the vacuum of space to Earth via electromagnetic waves, which is the process of radiation. Conduction and convection both require a physical medium (matter) to transfer heat, which is not present in the vacuum of space.