Which statement about ecosystems is false? most ecosystems get energy from the sun. ecosystems are units of nature. ecosystems are closed systems. all of these statements about ecosystems are false. none of these statements about ecosystems are false

Why can't you grow plants with adhesion water?

Hummingbirds drink nectar from flowers, while robins eat plant seeds. what does this reduce?

According the inverse square law, doubling the distance from the source of the sound, a speaker, for example, will drop the sound 6 db each time. if you were standing in the back of an auditorium, 32 feet away from a speaker not using any amplification, would you be able to hear a speaker clearly? why or why not?