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denis-greek [22]
3 years ago
7

What are three inventions used to reduce friction??

Biology
1 answer:
serious [3.7K]3 years ago
5 0
Lubricants, Magnetic Levitation, Ball Bearing
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Fires in grasslands prevent the growth of 1.shrubs 2.migrating animals 3.runners 4.plants
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The annual precipitation varies most in which of these ecosystem?
pshichka [43]

Answer:

The annual precipitation varies most in tropical rain forest ecosystem.

Explanation:

Tropical rain forest is one of the most extensive selvatic ecosystems, with a very dense vegetation, which is characterized by its high temperatures and abundant and varied annual precipitations, which are between 1500 and 5000 mm per year.

This ecosystem can be found in Central America, Mexico, Australia and even in Asia, where a seasonal climate can be seen divided into rainy seasons -which register the highest rainfall- and a dry season, where rainfall is lower. Most of the year the climate is hot and one of its characteristics is to present the greatest variety of animal and vegetable species.

Tropical rain forest brainly.com/question/11214203

7 0
3 years ago
If the grass contains 100,000 kcal of energy, how much energy will a fox obtain from eating a bird? 10,000 kcal 1,000 kcal 100 k
lawyer [7]

If the grass contains 100,000 kcal of energy, the energy a fox will obtain from eating a bird is 1,000 kcal.

<h3>What is Calorie?</h3>

This is defined as a unit of energy and it decreases as it moves up the food web in the ecosystem.

The organisms only derive 10 percent of the energy when the feed on others. In this case, the grass has 100,000 kcal of energy which when eaten by the bird will be 10 percent which is 10,000 kcal. When the fox eats the bird it becomes 1,000 kcal.

Read more about Calorie here brainly.com/question/1061571

8 0
2 years ago
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