The two kinds of unbalanced forces are:
- Net Force: Is the vector sum of all forces acting (pushing or pulling) on an object.
- Resultant Force: is a force that alone produces the same acceleration as all those forces.
To effects that unbalanced forces have on objects are:
- Can make an object move or stop.
- Can speed up or slow down an object.
Here are some examples:
- When falling out of a plane when sky diving, this is making you move faster. Then when you are using a parachute, you are slowing down.
- A man uses force to roll down an object from the top of a hill.
Answer:
I believe that the answer to this question would be D. refraction
Explanation:
because it changes direction of the light in don't know how to explain
A scientist can study <span>the relationship between the Tiktaalik roseae and modern fish and tetrapods by creating </span>a diagram that hypothesizes ancestry relying on the fact that common descent<span> describes how, in </span>evolutionary biology<span>, a group of </span>organisms<span> share a </span>most recent common ancestor<span>.</span>
Biodiversity decreases, and the overall health of the ecosystem decreases.
Answer: Option D
<u>Explanation:</u>
In a niche when two different species occupy a niche competition arises between them. In due course both the species fight for existence and nature selects the best adaptable one to win. The other species either reduces in its population or gradually in struggle for existence they deteriorate and die.
Hence a decrease in bio diversity happens here due to natural selection. If the biodiversity is decreased in a particular niche it affects the growth of different species which in turn affect the whole ecosystem resulting in decrease of the overall health in an ecosystem.
Answer:
d
Explanation:
all the above listed other types of energy but d has nothing to do with the question.
