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goldenfox [79]
3 years ago
9

Please help it’s urgent!! For these two questions

Biology
2 answers:
LiRa [457]3 years ago
8 0

Answer:

Well the second one is False, because they mean dark clouds  

Explanation:

kkurt [141]3 years ago
6 0

Answer:

1. False

2.  False

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The Law of Independent Assortment states
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In many plants, stomata are found only on the lower surface of the leaf. The most likely explanation for this fact is that
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D. Plants have adapted to deal with the sun in many different ways, and this is one. The stomata are regulated by guard cells, which are activated by different things depending on the species of plant, and guard cells are supposed to keep the stomata from staying open all the time and losing too much water to evaporation. So, the solution is to have the stomata on the bottom of the leaf to prevent direct sunlight contact (and therefore more evaporation), and guard cells to protect the stomata. 
6 0
3 years ago
*EXTRA PTS* How much weight is needed for a 10 m high ball to achieve 400 J of potential energy?
mafiozo [28]

Answer:

,Mass of the Body = 10 kg.

Height = 10 m.

Acceleration due to gravity = 9.8 m/s².

Using the Formula,Potential Energy = mgh

= 10 × 9.8 × 10 = 980 J.

(b). Now, By the law of the conservation of the Energy, Total amount of the energy of the system remains constant.

∴ Kinetic Energy before the body reaches the ground is equal to the Potential Energy at the height of 10 m.

∴ Kinetic Energy = 980 J.

(c). Kinetic Energy = 980 J.

Mass of the ball = 10 kg.

∵ K.E. = 1/2 × mv²

∴ 980 = 1/2 × 10 × v²

∴ v² = 980/5

⇒ v² = 196

∴ v = 14 m/s.

7 0
3 years ago
Read 2 more answers
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