10. complete the table to show characteristics of acids and bases: ph range properties litmus paper test…

Answer:

Question 10:

	pH range	Properties	Litmus Paper Test Color
Acids	0 - 7	Sour - taste, can react with metals to produce hydrogen gas, can conduct electricity in solution	Turns blue litmus paper red
Bases	7 - 14	Bitter - taste, slippery feel, can react with acids in neutralization reactions, can conduct electricity in solution	Turns red litmus paper blue

Question 11:

a. Provisioning services (e.g., food, water, timber) b. Regulating services (e.g., climate regulation, water purification, flood control) c. Cultural services (e.g., recreation, aesthetic enjoyment, spiritual and religious values) d. Supporting services (e.g., nutrient cycling, soil formation, primary production)

Explanation:

Step1: Recall acid - base knowledge

Acids have a pH less than 7, characteristic properties like sour taste and react with metals. They turn blue litmus red. Bases have a pH greater than 7, with properties such as bitter taste and slippery feel, and turn red litmus blue.

Step2: Recall ecosystem service types

Provisioning services are direct products from ecosystems. Regulating services are about maintaining environmental balance. Cultural services relate to human well - being through non - material benefits. Supporting services are fundamental for other ecosystem functions.