Answer:
23. b
25. b
27. b
28. b
29. a
Explanation:
23. The earth have seasons because our Earth orbits around the sun with the Earth's axis of rotation being tilted at an angle of 
to the plane of the orbit.
24. Ozone in the protect us against the harmful ultraviolet rays coming from the sun.
The ozone layer is found to be located at the Stratosphere's lower part where the variation in its thickness depends on the seasons and the geography.
25. This phenomena is termed as equinox where at this time period, the Sun is Directly over the equator.
26. The part of the earth that provides us the protection against emissions from the sun is 'atmosphere' and it also creates the Aurora Borealis which is formed as a result of the interaction of the charged particles resulting from a storm of proton with the atmosphere giving rise to the aurora.
27. In a closed system, any waste items delivered by one animal types must be utilized by at different species.
28. Positive feedback promotes change as in this the underlying impact is improved or enhanced.
29. Sinks are those locations in a system where resources are collected..
Jill is growing a course for her animation to observe thru her scene called Motion path.
Motion paths can help you animate gadgets moving alongside curves and complicated shapes. in addition to lines drawn with the pen tool, you define movement paths via putting anchor factors that are then connected by directly or curved strains.
Fundamental movement Paths are easy routes representing diverse fundamental Shapes including Polygons, Stars, Circle, heart, and so forth. Lines_Curves consists of movement Paths together with Arcs, traces, Curves, Spirals, Turns, Waves, Zigzag, etc.
Motion direction is a CSS module that lets authors animate any graphical object alongside a custom route. The concept is that while you need to animate an element shifting alongside a path, you previously best had an animating translation, role, and so forth. at your disposal, which wasn't ideal and best allowed for easy movements.
Learn more about Motion path here: brainly.com/question/27795654
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D. Coal.
Coal is the most abundant fossil fuel. It is found most abundantly in the United States of America. It was said that coal reserves can are around 909 billion tonnes, which sustaining the same rate of usage, can be used for more than 100 years.
