Answer:
Eco-friendly substances.
Explanation:
Eco-friendly materials are used in their planning and policies in order to reduce the impact of the product on the environment. use of electric vehicles is the example of Eco-friendly substance because they did not harm the environment because they cause no pollution as compared to those vehicles who uses fossil fuels for running. Eco-friendly materials are very necessary in order to save the environment.
Answer:
544
Explanation:
All you do is 840 minus 296 which gives you 544
Be careful with semi-trucks making a) loud noises
Some not unusual synonyms of loud are earsplitting, raucous, stentorian, and strident. even as these types of phrases suggest "marked through intensity or volume of sound," loud applies to any extent above normal and may suggest undue vehemence or obtrusiveness.
Loud sound has an excessive volume even as soft sound has a low quantity. Banging of a hammer and a vehicle's horn are examples of loud sounds whilst gambling of a piano and sound of blowing wind are examples of gentle sounds. Sound: it is a form of electricity produced by way of vibrating our bodies.
The sound waves journey through the ear canal to attain the eardrum. The eardrum vibrates from the incoming sound waves and sends these vibrations to 3 tiny bones in the center ear. those bones expand, or boom, the sound vibrations and send them to the inner ear.
Learn more about loud noises here: brainly.com/question/718389
#SPJ4
The correct answer is operant conditioning.
The rat's behavior is learned, making it a <em>conditioned</em> behavior. In operant conditioning, the behavior is learned through the use of reward or punishment. In the case of the rat, its conditioned behavior is to navigate the maze to receive its reward: food.
C. River Valleys.
There was much more vegetation and fertility.
