Chemistry High School

What percentage of Earth's land is used for agriculture?


40%

20%

50%

10%

Answers

Answer 1

Answer:

40%

Explanation:

hope it helps! God bless

Answer 2

Answer:

40% of Earth's land is used for agriculture.

Related Questions

62. Write formulas for the following substances and
designate their physical states.
a. nitrogen dioxide gas
b. liquid gallium
c. barium chloride dissolved in water
d. solid ammonium carbonate

Answers


A. NO2(g)
B. GA (I)
C. BaCI2 (aq)
D. (NH4) 2CO3 (s)

The formulas for the substances and designate their physical states as follows:

a. nitrogen dioxide gas NO₂(g)

b. liquid gallium  GA (I)

c. barium chloride dissolved in water BaCI₂ (aq)

d. solid ammonium carbonate (NH₄) 2CO₃ (s)

What is chemical formula ?

The term chemical formula is defined as an expression that presents the elements in a compound and the relative proportions of those elements.

If only one atom of a particular type is present, no subscript is used. For atoms that have two or more of a particular type of atom present, a subscript is written after the symbol for that atom.

It presents the constituent element and the number of atoms of each element present in one molecule of the compound. It also corresponds to the molecular mass of the compound.

Thus, The formula of nitrogen dioxide gas is NO₂(g).

To learn more about the chemical formula, follow the link;

https://brainly.com/question/29031056

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_____AI(NO3)3 + _____NaOH —> ___Al(OH)3
+ _____NaNO3

Answers

Answer:

Al(NO3)3 + 3NaOH -----> Al(OH)3 + 3NaNO3

3. Which of the following sentences apply to neutrons? a. have a negative charge. b. circle around the atom nucleus. c. are the only particles that form the nucleus. d. have a mass of 1 amu. SA 2​

Answers

Answer:

d.have a mass of 1 amu..

Explanation:

Does not match a as the answer for a is electrons B.electron circle around the nucleus because neutrons are inside the nucleus.C.proton and neutrons make the nucleus so the only answer left is .d .which is correct

Answer:c are the only are the only particle that form the nucleus

Explanation:

If a zero order reaction has a rate constant k of 0.0416Mmin and an initial concentration of 2.29 M, what will be its concentration after 20.0 minutes

Answers

Answer:

1.46 M

Explanation:

[A]t=−(0.0416 M/min) x (20.0 min)+2.29 M

[A]t=1.46 M

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