B. The cold air is moving faster than the warm air, which causes rain.
C. Because the cold air is denser, it causes rain.
D. The two air masses neutralize each other, which results in clouds that produce rain.
Answer:
A,when the two air masses meet,the cold air cools the block if warm air,causing it to condense and form stratus clouds( blankets of blank clouds that form when air rises slowly e.g. a warm air mass meets a cold one). Eventually when the cloud becomes saturated precipitation falls from them(precipitation is moisture in any form that falls from the atmosphere).
B. food web.
C. reservoir.
D. biotic community.
answered|Score .8
Pete's speed can be calculated using the formula for speed which is distance divided by time. He covers a distance of 150 meters in 18 seconds, resulting in a speed of approximately 8.3 meters per second.
To calculate Pete's speed in meters per second, we can use the formula for speed which is given by distance/time. In this case, the distance that Pete covers is 150 meters, and the time he takes is 18 seconds. So, we divide 150 by 18 to get Pete's speed. When we perform this calculation, we obtain a speed of approximately 8.3 meters per second. Therefore, the correct option is (a) 8.3 m/s.
This equation allows us to calculate the speed for any given distance and time and is an essential component of physics and many real-world situations such as determining travel times, planning routes, and even in sporting events to measure performance.
Learn more about Speed Calculation here:
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Answer:
More experimental.
Explanation:
A hypothesis is formulated on the basis of some observed, but unexplained behavior. It is usually preceded by an exclamation from the researcher of "What the heck? Did you see that? It went up and turned blue, when it should have gone sideways and turned red."
The observed behavior was unexpected, so the researcher wants to know why. The first place to start is with an hypothesis: an explanation of what might be happening. It must be a "testable" hypothesis - an explanation that provides an avenue for testing whether the hypothesis may contain some truth. E.g., the lab tech created sufficient momentum in the sample to make it react when he/she moved it from the table to the cabinet.
This can be tested. Just do the same experiment but control movement of the sample. If the reaction does NOT occur under the new conditions, then one might advace the observation as a theory. Ni=ot proven, but the data are consistent with the hypothesis. A theory is based on some level of experimental results, to move it up from an hypothesis.