1-¿Por qué son importantes las semillas nativas?

Spanish:

Las semillas nativas son importantes porque pueden tener un gen que sea importante para la producción del futuro, genes tolerantes a las alturas o genes resistentes a la sequía. Además, son vitales para toda la vida en la Tierra.

English:

Native seeds are important because they may have a gene that is important for future production, height-tolerant genes, or drought-resistant genes. Furthermore, they are vital to all life on Earth.

a axis of a graph is a color or shade so we can all go outside and have a party so we can eat   some grilled cheese sammiches and broccoli and have some ugly fun times

i don't know why i put this, i know its not the i was just bored : p

delete this answer while you can

estuaries are the partially enclosed coastal bodies of brackish water formed at the mouth of sea where river meets an ocean. it is a transition zone between river and sea water so estuaries are influenced to both marine environment such as tides, waves and to riverine such as flow of fresh water and sediments. the mixing of sea and fresh water provide high level of nutrients, making estuaries a high product habitats.

many estuaries suffers degradation from a variety of human activities like erosion from deforestation, overgrazing, overfishing, drainage and eutrophication.

so from the above statement answers will be

1. false as estuaries are formed due to both brackish and freshwater.

2.true, due to high productivity estuaries are breeding ground for many marine species.

3. direct and indirect activities of man that contribute to pollution and deposition of sediments.