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
Sergeu [11.5K]
3 years ago
6

Why is coal considered to be a nonrenewable energy resource?

Biology
2 answers:
Marta_Voda [28]3 years ago
8 0
The answer is C I think good luck:)
Rus_ich [418]3 years ago
6 0

Answer:

C.

Coal is made from fossilized remains of ancient plants and animals. When coal is mined/burned it takes millions of years for it to be replaced.

You might be interested in
Is a sperm cell diploid or haploid
Westkost [7]

Answer:

haploid

Explanation:

because it is formed after meiosis

please mark me brainliest and 5 star

5 0
2 years ago
Read 2 more answers
I need help please and thanks
iren [92.7K]
I would help but I can barely see the page
6 0
3 years ago
Read 2 more answers
Please help!
Gala2k [10]

Tundra and deserts are two biomes of the world which represent the extreme form of climates. Tudra is the coldest region of the earth while desert represent the hottest zones of the earth. But whats  the most common thing in these extreme zones is that they receive very less precipitation throughout the year (less than 25 cm).

Therefore, flora of the desert and Tundra have some special adaptations to survive without sufficient amount of water.

Let's see what are those:

  • Tundra:
  1. The height of plants growing in Tundra is very less like lesser than 1 foot. The short structure of the plants helps them to get more heat from the dark soil and helps to survive freezing. The short height lets them stay protected from harsh effects of cold or snow.
  2. The plants in tundra grow in groups or clumps that helps them in surviving the attacks of ice particles or snow balls. For example: lousewort and Arctic crocus.
  3. Some flora of tundra has ability to grow even in the complete lack of water for several years.This is because they have waxy layers that cover the leaves and store maximum water for the periods of no availability.
  4. Some plants have hair on the surface of stems that trap maximum heat and protect the plant from heat and extreme forms of wind. For example: Arctic crocus.
  • Desert
  • Desert plants not only have physiological but also morphological adaptations to survive heat stress and shortage of water. Their stems, roots and leaves are fleshy and help them to store water for a large period of time. For example: Cactus
  • Many desert plants like <em>xerophytic bromeliads</em> and <em>epiphytic orchids </em>contain a system alternate of photosynthesis called CAM (Crassulacean Acid Metabolism). This process helps the plant to open the stomata at night for exchange of gases and accumulate CO2. In day, stomata are closed and the CO2 is used for photosynthesis. This is an adaptation, because during night when temperature is low, CAM plants lose less water as compared to what normal plants lose during day.
  • Some plants have extremely large roots that absorb maximum water from soil and compensate the plant's loss of water due to heat. For example: Phreatophytes.
  • Some Perennial plants  have adapted the mechanism to stay in condition of rest or dormant during extreme heat. They get back to normal life when weather become a bit better.

 Hope it helps! :)



8 0
3 years ago
What is the fitness advantage for the angiosperm approach to the formation of nutritive tissue?
kiruha [24]
<span>An advantage for the angiosperm approach to the formation of nutritive tissue is in energy conservation.</span> <span>The nutritive tissue is formed via double fertilization in Angiosperms. The advantage of double fertilization is that the plant does not invest energy in seed nutritive tissue until after an egg has been fertilized. This means that endosperm (nutritive tissue) starts to develop and store nutrients after it has been fertilized by a sperm cell.</span> Another advantage is that the endosperm nucleus is very active and <span>divides rapidly, so it forms the nutritive tissue very quickly.</span>
4 0
3 years ago
Which two substances bind using a lock-and-key mechanism?
Debora [2.8K]
<span>Enzyme and substrate bind using a lock-and-key mechanism. </span>
8 0
3 years ago
Read 2 more answers
Other questions:
  • I need help, please &amp; thank you
    9·1 answer
  • Which is a homologous chromosome pair?
    7·1 answer
  • Which gland, classically referred to as the “master gland,” releases hormones that control the thyroid gland, adrenal glands, an
    14·2 answers
  • Mechanism of macroevolution works by __________. a. appearing in the fossil record of species with similar morphologies. b. weak
    9·1 answer
  • Give three examples of ways in which biology can help<br> inform everyday decisions.
    14·1 answer
  • An element may have more than one isotope if the atoms have different numbers of
    7·1 answer
  • A solid is that form of matter that possesses the following
    6·1 answer
  • Write an essay about the dangers of Child Labour. ( 250 - 300 words).<br>​
    13·2 answers
  • Animals living together in a group for generations are called what
    13·1 answer
  • A variety of different species will colonize an environment over time through ecological succession. Therefore, ecological succe
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!