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xxMikexx [17]
3 years ago
12

Why would pushing a wooden block across a rough surface make the block warm?

Biology
1 answer:
Olenka [21]3 years ago
5 0
As we know there is a certain force called the frictional force that is required in order to resist the movement of a certain object. This frictional force occurs whenever two objects are rubbed against each other. The frictional force generated is converted to heat energy in due time making the surface hot. 
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he hormone oxytocin Select one: A. increases a woman's appetite during pregnancy. B. reduces the ability of blood to clot during
yulyashka [42]

Answer: option C) enables the "let-down" reflex to occur when a woman breastfeeds her baby.

Explanation:

Oxytocin is a hormone secreted by the posterior pituitary gland. It stimulates the contractions of smooth muscles such as

- uterus facilitating childbirth

- ducts of the mammary glands resulting in ejection of milk. Thus, it is also called as milk-let-down-ejection factor.

So, option C is the correct answer

7 0
3 years ago
Read 2 more answers
If many trees are removed from that forest by logging what is the most immediate effect on the carbon cycle in that forest
liberstina [14]
Decreased use of atmospheric co2 is the answer. Hope this helps!:)
8 0
4 years ago
What is the best definition for biogeochemical cycles?
Pavel [41]

Answer:

The correct answer is b

Explanation:

A biogeochemical cycle corresponds to an exchange of different elements such as carbon, nitrogen, water, phosphorus, nitrogen, carbon and other elements, between living beings and the environment (either decomposition or production processes).

7 0
3 years ago
Read 2 more answers
The chart shows the total amount of nitrogen oxides (NOx) and sulfur dioxide (SO2) that coal-fired utilities emitted between 199
horsena [70]

Answer:

Yes.

Explanation:

If the graph line comes lowers from 1999 to 2013 so it means that steps taken by the EPA and the factories were effective in reducing air pollution. The steps taken by the EPA and the factories were effective in reducing air pollution occurs from two pollutants i. e nitrogen oxides (NOx) and sulfur dioxide (SO2) if they install chimneys which collect these gases and reduce pollution. if the factories uses coal having less concentration of sulphur so less air pollution occurs.

4 0
3 years ago
Read 2 more answers
What elements are shared between the four macro molecules?
Aneli [31]
I believe it may be carbon, hydrogen and oxygen..
6 0
3 years ago
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