Examples of clues that use the senses to indicate hazardous materials include:

a. Fire or vapor clouds,

b. A hissing sound,

c. Visible sign of corrosion

Explanation:

Hazardous materials are materials that have the potential or ability to causes harm to a person or their environment either by itself or when they come in contact with other materials.

Hazardous materials can come in form of solid, liquid or gas.

We have 3 types of hazards:

a. Physical hazards

b. Chemical hazards

c. Biological hazards.

The classes of hazardous materials that we have include:

a. Flammable solids

b. Radioactive materials

c. Gases

d. Corrosives materials such ad Acidic or Alkaline materials

e. Flammable and combustible liquid materials.

f. Toxic and infectious materials

g. Oxidizing materials and peroxides

h. Aerosols

Clues which we can use to detect the presence of hazardous materials in our environment includes:

a. Our senses(sensory organs)

b. Detection devices

c. The labels on the containers of certain products

d. Container shapes

e. Colours or markings placed on containers

f. Occupancy or Location of the hazard

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.

d. planting trees

the trees take in carbon to make oxygen.