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<span>C.)Amino acids - Nutritionally-important substances that come from the earth</span>
Answer:
a
Explanation:
lampreys are jaw-less fish
Answer:
B.
Explanation:
Because a Longitudinal wave is a wave vibrating in the direction of propagation.
4. Collect and measure the amount of rain in March and in April
Explanation - Rainfall can be measured by instruments like rain gauge. But in case rain gauge is not available then the rain water can be collected in a vessel having funnel at the top.
Measuring the amount of water falling each day in the month of march and april would give the idea about which month has more rainfall. The measurement might not be accurate but it gives a brief idea about how much centimeter of rain is occurring in both the months.
