How light years are used to measure distances and sizes in the universe.

Biomass can be used to generate electricity. biomass relies heavily on agricultural crops. plants release carbon dioxide and water in combustion. plants use photosynthesis to originally generate the energy that is needed. the chemical energy of these plants all started with what energy source?

Which is the best hypothesis for the scientific question "how does light intensity affect the rate of photosynthesis"? a) light intensity, co2 concentration, and temperature are factors that determine the rate of photosynthesis.b) light intensity has no effect on the rate of photosynthesis.c) if the distance between the source of light and the plant is increased, the rate of photosynthesis will decrease.d) light intensity has an impact on the rate of photosynthesis.

Выберите верные утверждения: 1. особенно хорошо развиты у птиц мозжечок и полушария мозга 2. у птиц, обычно, функционируют оба яичника. 3. за счет канатиков зародышевый диск всегда расположен сверху 4. у уток птенцы выводкового типа.