Answer:
The electromagnetic spectrum is a continuum of all electromagnetic waves arranged according to frequency and wavelength. The sun, earth, and other bodies radiate electromagnetic energy of varying wavelengths. ... The spectrum of waves is divided into sections based on wavelength.
Answer;
A. The curl-up only tests the endurance of the abdominal muscles, not their strength
Explanation;
Curl up test measures abdominal strength and endurance. This test focuses predominantly on the main abdominal muscle, the rectus abdominus, and may not evaluate the core as a whole.
This test requires the athlete to complete as many curl-ups as possible at a rate of 20/minute. This test provides a means to monitor the effect of training on the athlete's physical development.
Answer: Well after a plants die, they decay, releasing the carbon to the atmosphere.
Explanation: Hope this help :)
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