Which is true of genes? Question 4 options: They are proteins that produce sections of DNA which control the cell's activities. They are the same as traits which show up in an organism if they are dominant. They are features that can be observed rather than measured. They are sections of DNA that produce the proteins that control an organism’s characteristics.

european union policies. the eu's long-term objective is to achieve levels of air quality that do not result in unacceptable impacts on, and risks to, human health and the environment. eu policies aim to reduce exposure to air pollution by reducing emissions and setting limits and target values for air quality.

the main environmental problems in western europe were: energy production/acid rain, nuclear power/waste, air pollution/climate, heavy metals, pesticides, water pollution, solid waste, and unforeseen accidents. many environmental problems are common to most european countries.

i know can you plzz me with this question im sorry i didt answer your question i just need hel.

it is a limiting nutrient limited by a single nutrient in the ecosystem, & the single goes very slow.

answer; three;