air is combination of nitrogen gas and oxygen gas with various amounts of other matherials such as water vapour, carbon dioxide and particulates. it indivates that air is _____.A.an elementB.a compound C.a mixtureD.a pure substance​

ANSWER:

A.DYNAMIC EXERCISES

EXPLANATION:

DYNAMIC EXERCISES INVOLVES ACTIVE MOVEMENTS WHERE JOINTS AND MUSCLES GO THROUGH A FULL RANGE OF MOTION.

Answer:

c. during a rainy day

Explanation:

Among the limitations to the use of a sundial, we can mention:

• cannot be changed of location;
• its operation can only be seen on a sunny day.

Due to the natural inclination of the axis of rotation and the elliptical shape of the Earth, the sundial cannot be changed location, otherwise it loses its precision and accuracy.

In addition on rainy days or even at night, the sundial will not work due to the absence of sunlight.

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• c. during a rainy day

The sundials may not be useful in telling time during a rainy day.

Answer:

In physiology, a stimulus (plural stimuli or stimuluses) is a detectable change in the physical or chemical structure of an organism's internal or external environment. The ability of an organism or organ to detect external stimuli, so that an appropriate reaction can be made, is called sensitivity.

Explanation:

Answer:

A stimulus that comes from outside an organism or any external input which leads to sensation or reaction is called external stimuli's. Sensory receptors can detect changes or receive information from outside the body, through sensory receptors and convert these stimulus into impulses.

Answer:

Some principles of organization affecting the composition of a picture are:

Shape and proportion.

Positioning/orientation/balance/harmony among the elements.

The area within the field of view used for the picture ("cropping")

The path or direction followed by the viewer's eye when they observe the image.

Negative space

Explanation:

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