a. all living things require_____
to survive.
2. The ratio of____and______
in air is 1 : 4 by volume.
3. Aquatic plants and animals breathe in________dissolved in water.
4. Earthworms come out during rains because they need to breathe in__________.
5. Plants and animals depend on each other for exchange of_______ and_______.
Q. State True (T) or False (F) against the following sentences :
1. Ozone-layer protects us from harmful ultraviolet radiation.
2. Plants do not need oxygen during the day.
3. Chlorophyll is not essential for photosynthesis.
4. The blanket of air around the earth is known as atmosphere.
5. Plants give out carbon dioxide during respiration.
Answers
Answer:
1 and 4 are true rest are all false !
GIVEN:-
a. all living things require_____
a. all living things require_____to survive.
a. all living things require_____to survive.2. The ratio of____and______
a. all living things require_____to survive.2. The ratio of____and______in air is 1 : 4 by volume.
a. all living things require_____to survive.2. The ratio of____and______in air is 1 : 4 by volume. 3. Aquatic plants and animals breathe in________dissolved in water.
a. all living things require_____to survive.2. The ratio of____and______in air is 1 : 4 by volume. 3. Aquatic plants and animals breathe in________dissolved in water. 4. Earthworms come out during rains because they need to breathe in__________.
5. Plants and animals depend on each other for exchange of_______ and_______.
5. Plants and animals depend on each other for exchange of_______ and_______.Q. State True (T) or False (F) against the following sentences :
5. Plants and animals depend on each other for exchange of_______ and_______.Q. State True (T) or False (F) against the following sentences :1. Ozone-layer protects us from harmful ultraviolet radiation.
5. Plants and animals depend on each other for exchange of_______ and_______.Q. State True (T) or False (F) against the following sentences :1. Ozone-layer protects us from harmful ultraviolet radiation.2. Plants do not need oxygen during the day.
5. Plants and animals depend on each other for exchange of_______ and_______.Q. State True (T) or False (F) against the following sentences :1. Ozone-layer protects us from harmful ultraviolet radiation.2. Plants do not need oxygen during the day.3. Chlorophyll is not essential for photosynthesis.
5. Plants and animals depend on each other for exchange of_______ and_______.Q. State True (T) or False (F) against the following sentences :1. Ozone-layer protects us from harmful ultraviolet radiation.2. Plants do not need oxygen during the day.3. Chlorophyll is not essential for photosynthesis.4. The blanket of air around the earth is known as atmosphere.
5. Plants and animals depend on each other for exchange of_______ and_______.Q. State True (T) or False (F) against the following sentences :1. Ozone-layer protects us from harmful ultraviolet radiation.2. Plants do not need oxygen during the day.3. Chlorophyll is not essential for photosynthesis.4. The blanket of air around the earth is known as atmosphere. 5. Plants give out carbon dioxide during respiration.
SOLUTION:-
a. OXYGEN
b. Nitrogen , oxygen
c. oxygen
d. oxygen
e. oxygen and carbon dioxide .
1. true
2. false
3.false
4. true
5 . false