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romanna [79]
4 years ago
14

Which is a major threat to biodiversity? A. Red-billed oxpeckers eat ticks off of impalas' coats in the grasslands of East Afric

a. B. Mining in the Guinean Forests of West Africa to provide diamond and gold jewelry for humans. C. Acacia trees of Central and South America provide food for stinging ants, while the stinging ants snip surrounding plants that grow too close. D. In Japan, hummingbird hawkmoths drink nectar from a species of flowering plants and transfer the plants' pollen to other flowering plants of the same species.
Physics
1 answer:
SIZIF [17.4K]4 years ago
4 0
B. Mining in the Guinean Forests of West Africa to provide diamond and gold jewelry for humans.
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find the gravitational force between the two bodies of unit mass each and separated by unit distance​
Ede4ka [16]

Answer:

Here gravitational force is G or gravity constant.

8 0
3 years ago
A rabbit trying to escape a fox runs north for 8.0 m, darts northwest for 1.0 m, then drops 1.0 m down a hole into its burrow. W
Andrews [41]

Answer: The net displacement is 6.40meters

Explanation:

7 0
3 years ago
Both lead and zinc are formed as precipitates. Which of these is a step in the formation of the minerals?
Ahat [919]
Minerals are naturally occurring inorganic (they're not formed from amino acids, peptides, or enzymes) chemical compounds.

From the given options, the following describes a step in the formation of the minerals: materials break up due to rise in temperature.

Correct answer: D

5 0
3 years ago
The age of the universe is around 100,000,000,000,000,000s. A top quark has a lifetime of roughly 0.000000000000000000000001s. W
Maslowich

Answer:

10⁴¹ s quark top lives have been in the history of the universe.

Explanation:

You need to determine how many quark top lives there have been in the history of the universe, that is, what is the age of the universe divided by the lifetime of a top quark. Expressed in a formula, this is:

t\frac{Age of the universe}{Lifetime of a top quark}

Yo know that the "Age of the universe" is 100,000,000,000,000,000  which can also be expressed as 10¹⁷ s .

You also know that the "Lifetime of a top quark" is 0.000000000000000000000001 which can also be expressed as 10⁻²⁴ s.

Then t=\frac{10^{17} }{10^{-24} }

Recalling that the result of dividing two powers of the same base is another power with the same base where the exponent is the subtraction of the initial exponents, it is possible to calculate this division as follows:

t=10^{17-(-24)}

t=10^{17+24}

<u><em>t=10⁴¹ s</em></u>

So <u><em>10⁴¹ s quark top lives have been in the history of the universe.</em></u>

5 0
3 years ago
When you walk across the ground and push on it with your feet...
marissa [1.9K]

Answer:

The ground pushes back on your feet with equal force.

Explanation:

Newton's Laws of Motion

6 0
3 years ago
Read 2 more answers
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