1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mylen [45]
3 years ago
13

which of the following questions can use science as a method of inquiry? a. is cloning appropriate b. how can we protect crops f

rom drought c. why is jazz a great type of music d. did dinosaurs exist
Chemistry
1 answer:
inessss [21]3 years ago
8 0

Answer: b. how can we protect crops from drought

Explanation:

A scientific inquiry can be define as the fact finding inquiry in which query related to a scientific phenomena is answered by implementing a suitable scientific methodology.

Among the options given, b. how can we protect crops from drought is the correct option this is because of the fact that this can be answered by using suitable scientific experimental procedure. As drought is a natural phenomena it is expected to leave it's impact over the growth of crops as in drought crops may face scarcity of water which can limit the growth.

You might be interested in
10 POINTS
Snowcat [4.5K]
E=hc/λ =6.626×10^-34×3 ×10^8 / 3×10^7 × 10^-9 = 6.626×10 ^-24J.
7 0
3 years ago
Which of the following statements is TRUE?
Karo-lina-s [1.5K]

Answer:

The correct option is E.

Explanation:

Average speed of the gas molecules = v_a

v_a=\sqrt{\frac{2RT}{M}}

T = Temperature of the gas molecule

M = molar mass of gas molecule

R = gas constant

v_a\propto \frac{1}{M}

Higher the molar mass of the molecule lesser will be the speed and vice versa.

Hence, statement A is not true.

Graham's Law.

This law states that the rate of effusion or diffusion of gas is inversely proportional to the square root of the molar mass of the gas. The equation given by this law follows the equation:

\text{Rate of diffusion}\propto \frac{1}{\sqrt{\text{Molar mass of the gas}}}

Larger the molar mass that larger the molecule lessor will be the effusion and vice versa.

Hence, statement B is not true.

According to Boyle's law, pressure of the gas is inversely proportional o the volume occupied by the gas at constant temperature. And same can also be observed from ideal gas law:

PV=nRT

P=\frac{nRT}{V}

P\propto \frac{1}{V}

Higher the pressure of the gas lower will be the volume occupied by the gas and vice versa.

Hence, statement C is not true.

With rise in temperature, effusion of gas molecule increase as kinetic energy of gas molecules increases in with increase in temperature.

Average kinetic energy is defined as the average of the kinetic energies of all the particles present in a system. It is determined by the equation:

K=\frac{3RT}{2N_A}

where,

K = Average kinetic energy

R = Gas constant

T = Temperature of the system

N_A = Avogadro's number

K\propto T

Higher the temperature more will be kinetic energy of gas molecule more easily it will effuse.

Hence, statement D is not true.

From this we can conclude that out of five statements first 4 statements are not true which means that none of these statements are true.

3 0
4 years ago
Which of the following changes are chemical changes?
Rashid [163]

Answer:

Gasoline is burning

Explanation:

examples of chemical changes are burning , cooking,rusting and rotting

4 0
3 years ago
Read 2 more answers
where earths plates move , they may slide alongside one another , pull apart , or ? is the answer A . collide or B . divide ?
cupoosta [38]
A is the answer. From the packet.
4 0
3 years ago
Name the only satellite which is known to have an atmosphere in the planet it orbits
Maurinko [17]

Answer:

Titan which orbits Saturn

Explanation:

6 0
3 years ago
Other questions:
  • Is lead chloride ( PbCl2) solution, substance, homogenous mixture or heterogeneous mixture?
    5·2 answers
  • What change causes a substance to change states of matter?
    13·2 answers
  • How can you separate a mixture of dry materials
    8·1 answer
  • How do we measure forces?
    12·1 answer
  • Consider an electron placed in a region of space in which the electric potential spatially. The electron is placed at a point wh
    15·1 answer
  • When 10g of calcium carbonate is heated,4.4g of carbon dioxide escape out. The amount of residue left is:
    9·1 answer
  • Which element is a metal?<br><br> A. Li<br> B. P<br> C. Ar
    12·1 answer
  • I paid for help here but my questions are not being answered, I think I should delete this and try chegg
    8·2 answers
  • The number of mgs of Cl- in a 750 mL bottle of mineral water is 21
    10·1 answer
  • What should each experiment only have one of?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!