Match the following chemicals with their descriptions. 1. abscisic acid chemicals produced by plants that stimulate stem elongation, seed germination, and flowering 2. auxins hormone that regulates survival functions of a plant, such as the opening and closing of stomata 3. cytokinins 3 chemicals that helps plant cells divide 4. ethylene 4 hormone that promotes ripening of fruit or blooming of flowers 5. gibberellins chemicals produced in plants that are characterized by their ability to induce cell elongation and cell division in stems

1. Gibberellins

2. Abscisic acid

3. Cytokinins

4. Ethylene

5. Auxins

Explanation:

Hormones, generally, are chemicals produced in a specific part of an organism in order to bring about a physiological change in another part. Hormones produced by plants are classified into the following: Auxins, Gibberellins, Cytokinins, Ethylene, and Abscisic acid. They effect the following major functions in plants:

- Gibberellins: These are hormones produced by plants that stimulate stem elongation, seed germination, and flowering.

- Abscisic acid: These are hormones that regulates survival functions of a plant such as the opening and closing of stomata.

- Cytokinins: These are chemicals/hormones that helps plant cells divide.

- Ethylene: These are hormones that promotes ripening of fruit or blooming of flowers.

- Auxins: These are chemicals or hormones produced in plants that are characterized by their ability to induce cell elongation and cell division in stems.

c. earths continental crust is thicker than its lithosphere.

because, the lithosphere is the outermost layer of the earth/ 100 km thick and is defined by its machanical properties.the lithosphere contains oceanic and continental crust that varies in age and thickness across locations and geologic time. the lithosphere is the coolest layer of the earth in terms of temperature. the term lithosphere should not be confused with the use of "geosphere" which is used to indicate all of earth systems, including the atmosphere, hydrosphere   and biosphere. the surface of the earth can be divided into the continental crust and the oceanic crust.   the continental crust is made mostly of granite while the oceanic crust is made of basalt. the average thickness of the continental crust is 25 miles and the average thickness of the oceanic crust is 5 miles.   three types of rock, igneous, sedimentary, and metamorphic, make up the surface of the earth. that's why 3 option is preferable.

bacterium is not correct