This was said by Mother Teresa before she died. So no later than 1977.
Explanation:
A beach forms when waves deposit sand and gravel along the shoreline. and pebbles. Over time they are worn smooth from being rolled around by waves. The rocks usually reflect the local geology.
Answer:
It is formed when two masses of air of different temperature, humidity and density meets. ... As the warm air rises, it cools, and the moisture present in it condenses to form clouds altostratus clouds.
ANSWER Importance of Controlled Variables
Lack of awareness of control variables can lead to faulty results or what are called "confounding variables." Additionally, noting control variables makes it easier to reproduce an experiment and establish the relationship between the independent and dependent variables
Answer:
Ivan Pavlov
Explanation:
Associative learning is a type of conditioning, a theory that states behavior based on stimulus and reaction can be changed or learned. It is any learningprocess in which a new response becomes associated with a particular stimulus.
Ivan Pavlov was a Russian physiologist best known inpsychology for his discovery of classical conditioning. Pavlov defined a basic associative learning mechanism known as classical conditioning.
